<?xml version="1.0" encoding="us-ascii"?>
<!--Generated by Broadridge PROfile 23.9.1.5178 Broadridge-->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <link:roleRef roleURI="http://auldbrasspartners.com/role/IncomeTaxFyDetails" xlink:type="simple" xlink:href="fiac-20231130.xsd#IncomeTaxFyDetails" />
  <link:roleRef roleURI="http://auldbrasspartners.com/role/BalanceSheetsFy" xlink:type="simple" xlink:href="fiac-20231130.xsd#BalanceSheetsFy" />
  <link:roleRef roleURI="http://auldbrasspartners.com/role/CondensedStatementsOfCashFlowsQ3" xlink:type="simple" xlink:href="fiac-20231130.xsd#CondensedStatementsOfCashFlowsQ3" />
  <link:roleRef roleURI="http://auldbrasspartners.com/role/CondensedStatementsOfOperationsQ3" xlink:type="simple" xlink:href="fiac-20231130.xsd#CondensedStatementsOfOperationsQ3" />
  <link:roleRef roleURI="http://auldbrasspartners.com/role/CondensedBalanceSheetsQ3" xlink:type="simple" xlink:href="fiac-20231130.xsd#CondensedBalanceSheetsQ3" />
  <link:calculationLink xlink:type="extended" xlink:role="http://auldbrasspartners.com/role/CondensedBalanceSheetsQ3">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets" xlink:label="Assets" xlink:title="Assets" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrent" xlink:label="AssetsCurrent" xlink:title="AssetsCurrent" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Cash" xlink:label="Cash" xlink:title="Cash" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="Cash" xlink:title="calculation: AssetsCurrent to Cash" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="PrepaidExpenseCurrent" xlink:title="PrepaidExpenseCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AssetsCurrent" xlink:to="PrepaidExpenseCurrent" xlink:title="calculation: AssetsCurrent to PrepaidExpenseCurrent" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="AssetsCurrent" xlink:title="calculation: Assets to AssetsCurrent" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsHeldInTrustNoncurrent" xlink:label="AssetsHeldInTrustNoncurrent" xlink:title="AssetsHeldInTrustNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="AssetsHeldInTrustNoncurrent" xlink:title="calculation: Assets to AssetsHeldInTrustNoncurrent" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="LiabilitiesAndStockholdersEquity" xlink:title="LiabilitiesAndStockholdersEquity" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity" xlink:title="StockholdersEquity" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="RetainedEarningsAccumulatedDeficit" xlink:title="RetainedEarningsAccumulatedDeficit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="RetainedEarningsAccumulatedDeficit" xlink:title="calculation: StockholdersEquity to RetainedEarningsAccumulatedDeficit" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockValue" xlink:label="CommonStockValue" xlink:title="CommonStockValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="CommonStockValue" xlink:title="calculation: StockholdersEquity to CommonStockValue" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="AdditionalPaidInCapital" xlink:title="AdditionalPaidInCapital" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="AdditionalPaidInCapital" xlink:title="calculation: StockholdersEquity to AdditionalPaidInCapital" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockValue" xlink:label="PreferredStockValue" xlink:title="PreferredStockValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="PreferredStockValue" xlink:title="calculation: StockholdersEquity to PreferredStockValue" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="StockholdersEquity" xlink:title="calculation: LiabilitiesAndStockholdersEquity to StockholdersEquity" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities" xlink:label="Liabilities" xlink:title="Liabilities" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_MarketingAgreementNoncurrent" xlink:label="MarketingAgreementNoncurrent" xlink:title="MarketingAgreementNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="MarketingAgreementNoncurrent" xlink:title="calculation: Liabilities to MarketingAgreementNoncurrent" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLiabilitiesNoncurrent" xlink:label="DerivativeLiabilitiesNoncurrent" xlink:title="DerivativeLiabilitiesNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="DerivativeLiabilitiesNoncurrent" xlink:title="calculation: Liabilities to DerivativeLiabilitiesNoncurrent" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_DeferredUnderwritingFeePayableNonCurrent" xlink:label="DeferredUnderwritingFeePayableNonCurrent" xlink:title="DeferredUnderwritingFeePayableNonCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="DeferredUnderwritingFeePayableNonCurrent" xlink:title="calculation: Liabilities to DeferredUnderwritingFeePayableNonCurrent" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrent" xlink:label="LiabilitiesCurrent" xlink:title="LiabilitiesCurrent" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="AccruedIncomeTaxesCurrent" xlink:title="AccruedIncomeTaxesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="AccruedIncomeTaxesCurrent" xlink:title="calculation: LiabilitiesCurrent to AccruedIncomeTaxesCurrent" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent" xlink:label="AccrualForTaxesOtherThanIncomeTaxesCurrent" xlink:title="AccrualForTaxesOtherThanIncomeTaxesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="AccrualForTaxesOtherThanIncomeTaxesCurrent" xlink:title="calculation: LiabilitiesCurrent to AccrualForTaxesOtherThanIncomeTaxesCurrent" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="OtherLiabilitiesCurrent" xlink:title="OtherLiabilitiesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="OtherLiabilitiesCurrent" xlink:title="calculation: LiabilitiesCurrent to OtherLiabilitiesCurrent" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NotesPayableCurrent" xlink:label="NotesPayableCurrent" xlink:title="NotesPayableCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="NotesPayableCurrent" xlink:title="calculation: LiabilitiesCurrent to NotesPayableCurrent" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:label="AccountsPayableAndAccruedLiabilitiesCurrent" xlink:title="AccountsPayableAndAccruedLiabilitiesCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="AccountsPayableAndAccruedLiabilitiesCurrent" xlink:title="calculation: LiabilitiesCurrent to AccountsPayableAndAccruedLiabilitiesCurrent" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalesAndExciseTaxPayableCurrentAndNoncurrent" xlink:label="SalesAndExciseTaxPayableCurrentAndNoncurrent" xlink:title="SalesAndExciseTaxPayableCurrentAndNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesCurrent" xlink:to="SalesAndExciseTaxPayableCurrentAndNoncurrent" xlink:title="calculation: LiabilitiesCurrent to SalesAndExciseTaxPayableCurrentAndNoncurrent" order="0.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="LiabilitiesCurrent" xlink:title="calculation: Liabilities to LiabilitiesCurrent" order="0.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="Liabilities" xlink:title="calculation: LiabilitiesAndStockholdersEquity to Liabilities" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent" xlink:label="TemporaryEquityCarryingAmountAttributableToParent" xlink:title="TemporaryEquityCarryingAmountAttributableToParent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="TemporaryEquityCarryingAmountAttributableToParent" xlink:title="calculation: LiabilitiesAndStockholdersEquity to TemporaryEquityCarryingAmountAttributableToParent" order="1.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://auldbrasspartners.com/role/CondensedStatementsOfOperationsQ3">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLoss" xlink:to="IncomeTaxExpenseBenefit" xlink:title="calculation: NetIncomeLoss to IncomeTaxExpenseBenefit" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:title="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="NonoperatingIncomeExpense" xlink:title="NonoperatingIncomeExpense" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:label="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:title="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:title="calculation: NonoperatingIncomeExpense to DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_RecoveryOfOfferingCostsAllocatedToWarrants" xlink:label="RecoveryOfOfferingCostsAllocatedToWarrants" xlink:title="RecoveryOfOfferingCostsAllocatedToWarrants" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="RecoveryOfOfferingCostsAllocatedToWarrants" xlink:title="calculation: NonoperatingIncomeExpense to RecoveryOfOfferingCostsAllocatedToWarrants" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_OperatingAccountInterestIncome" xlink:label="OperatingAccountInterestIncome" xlink:title="OperatingAccountInterestIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="OperatingAccountInterestIncome" xlink:title="calculation: NonoperatingIncomeExpense to OperatingAccountInterestIncome" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="InvestmentIncomeInterest" xlink:title="InvestmentIncomeInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="InvestmentIncomeInterest" xlink:title="calculation: NonoperatingIncomeExpense to InvestmentIncomeInterest" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_WarrantTransactionCosts" xlink:label="WarrantTransactionCosts" xlink:title="WarrantTransactionCosts" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NonoperatingIncomeExpense" xlink:to="WarrantTransactionCosts" xlink:title="calculation: NonoperatingIncomeExpense to WarrantTransactionCosts" order="5.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="NonoperatingIncomeExpense" xlink:title="calculation: IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest to NonoperatingIncomeExpense" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingIncomeLoss" xlink:label="OperatingIncomeLoss" xlink:title="OperatingIncomeLoss" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_MarketingServiceFee" xlink:label="MarketingServiceFee" xlink:title="MarketingServiceFee" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="MarketingServiceFee" xlink:title="calculation: OperatingIncomeLoss to MarketingServiceFee" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses" xlink:label="OperatingExpenses" xlink:title="OperatingExpenses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OperatingIncomeLoss" xlink:to="OperatingExpenses" xlink:title="calculation: OperatingIncomeLoss to OperatingExpenses" order="1.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="OperatingIncomeLoss" xlink:title="calculation: IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest to OperatingIncomeLoss" order="0.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLoss" xlink:to="IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:title="calculation: NetIncomeLoss to IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" order="0.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://auldbrasspartners.com/role/CondensedStatementsOfCashFlowsQ3">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:title="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="NetCashProvidedByUsedInOperatingActivities" xlink:title="NetCashProvidedByUsedInOperatingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInDueToRelatedParties" xlink:label="IncreaseDecreaseInDueToRelatedParties" xlink:title="IncreaseDecreaseInDueToRelatedParties" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInDueToRelatedParties" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInDueToRelatedParties" order="12.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss" xlink:label="NetIncomeLoss" xlink:title="NetIncomeLoss" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="NetIncomeLoss" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to NetIncomeLoss" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_IncreaseDecreaseInFranchiseTaxPayable" xlink:label="IncreaseDecreaseInFranchiseTaxPayable" xlink:title="IncreaseDecreaseInFranchiseTaxPayable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInFranchiseTaxPayable" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInFranchiseTaxPayable" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAdjustmentOfWarrants" xlink:label="FairValueAdjustmentOfWarrants" xlink:title="FairValueAdjustmentOfWarrants" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="FairValueAdjustmentOfWarrants" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to FairValueAdjustmentOfWarrants" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:label="IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:title="IncreaseDecreaseInAccruedIncomeTaxesPayable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInAccruedIncomeTaxesPayable" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInAccruedIncomeTaxesPayable" order="15.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_RecoveryOfOfferingCostsAllocatedToWarrants" xlink:label="RecoveryOfOfferingCostsAllocatedToWarrants" xlink:title="RecoveryOfOfferingCostsAllocatedToWarrants" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="RecoveryOfOfferingCostsAllocatedToWarrants" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to RecoveryOfOfferingCostsAllocatedToWarrants" order="16.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense" xlink:label="IncreaseDecreaseInPrepaidExpense" xlink:title="IncreaseDecreaseInPrepaidExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInPrepaidExpense" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInPrepaidExpense" order="14.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="InvestmentIncomeInterest" xlink:title="InvestmentIncomeInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="InvestmentIncomeInterest" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to InvestmentIncomeInterest" order="8.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:title="IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_IncreaseDecreaseInMarketingServiceFee" xlink:label="IncreaseDecreaseInMarketingServiceFee" xlink:title="IncreaseDecreaseInMarketingServiceFee" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInMarketingServiceFee" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInMarketingServiceFee" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_TransactionCostsAllocableToWarrantLiabilities" xlink:label="TransactionCostsAllocableToWarrantLiabilities" xlink:title="TransactionCostsAllocableToWarrantLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="TransactionCostsAllocableToWarrantLiabilities" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to TransactionCostsAllocableToWarrantLiabilities" order="13.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="NetCashProvidedByUsedInOperatingActivities" xlink:title="calculation: CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect to NetCashProvidedByUsedInOperatingActivities" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="NetCashProvidedByUsedInInvestingActivities" xlink:title="NetCashProvidedByUsedInInvestingActivities" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_CashWithdrawalFromTrustAccountInConnectionWithRedemptions" xlink:label="CashWithdrawalFromTrustAccountInConnectionWithRedemptions" xlink:title="CashWithdrawalFromTrustAccountInConnectionWithRedemptions" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="CashWithdrawalFromTrustAccountInConnectionWithRedemptions" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to CashWithdrawalFromTrustAccountInConnectionWithRedemptions" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_TrustExtensionFunding" xlink:label="TrustExtensionFunding" xlink:title="TrustExtensionFunding" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="TrustExtensionFunding" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to TrustExtensionFunding" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_CashWithdrawnFromTrustAccountToPayTaxesObligation" xlink:label="CashWithdrawnFromTrustAccountToPayTaxesObligation" xlink:title="CashWithdrawnFromTrustAccountToPayTaxesObligation" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="CashWithdrawnFromTrustAccountToPayTaxesObligation" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to CashWithdrawnFromTrustAccountToPayTaxesObligation" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireMarketableSecurities" xlink:label="PaymentsToAcquireMarketableSecurities" xlink:title="PaymentsToAcquireMarketableSecurities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsToAcquireMarketableSecurities" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsToAcquireMarketableSecurities" order="5.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:label="ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:title="ProceedsFromSaleMaturityAndCollectionsOfInvestments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to ProceedsFromSaleMaturityAndCollectionsOfInvestments" order="4.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="NetCashProvidedByUsedInInvestingActivities" xlink:title="calculation: CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect to NetCashProvidedByUsedInInvestingActivities" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="NetCashProvidedByUsedInFinancingActivities" xlink:title="NetCashProvidedByUsedInFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromRelatedPartyDebt" xlink:label="ProceedsFromRelatedPartyDebt" xlink:title="ProceedsFromRelatedPartyDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromRelatedPartyDebt" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromRelatedPartyDebt" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="PaymentsForRepurchaseOfCommonStock" xlink:title="PaymentsForRepurchaseOfCommonStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="PaymentsForRepurchaseOfCommonStock" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to PaymentsForRepurchaseOfCommonStock" order="0.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_PaymentOfUnderwriterDiscount" xlink:label="PaymentOfUnderwriterDiscount" xlink:title="PaymentOfUnderwriterDiscount" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="PaymentOfUnderwriterDiscount" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to PaymentOfUnderwriterDiscount" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceOfPrivatePlacement" xlink:label="ProceedsFromIssuanceOfPrivatePlacement" xlink:title="ProceedsFromIssuanceOfPrivatePlacement" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromIssuanceOfPrivatePlacement" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromIssuanceOfPrivatePlacement" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering" xlink:label="ProceedsFromIssuanceInitialPublicOffering" xlink:title="ProceedsFromIssuanceInitialPublicOffering" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromIssuanceInitialPublicOffering" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromIssuanceInitialPublicOffering" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="ProceedsFromIssuanceOfCommonStock" xlink:title="ProceedsFromIssuanceOfCommonStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromIssuanceOfCommonStock" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromIssuanceOfCommonStock" order="3.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="NetCashProvidedByUsedInFinancingActivities" xlink:title="calculation: CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect to NetCashProvidedByUsedInFinancingActivities" order="1.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://auldbrasspartners.com/role/BalanceSheetsFy">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="LiabilitiesAndStockholdersEquity" xlink:title="LiabilitiesAndStockholdersEquity" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities" xlink:label="Liabilities" xlink:title="Liabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="Liabilities" xlink:title="calculation: LiabilitiesAndStockholdersEquity to Liabilities" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity" xlink:title="StockholdersEquity" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="StockholdersEquity" xlink:title="calculation: LiabilitiesAndStockholdersEquity to StockholdersEquity" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent" xlink:label="TemporaryEquityCarryingAmountAttributableToParent" xlink:title="TemporaryEquityCarryingAmountAttributableToParent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="TemporaryEquityCarryingAmountAttributableToParent" xlink:title="calculation: LiabilitiesAndStockholdersEquity to TemporaryEquityCarryingAmountAttributableToParent" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="CommitmentsAndContingencies" xlink:title="CommitmentsAndContingencies" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="CommitmentsAndContingencies" xlink:title="calculation: LiabilitiesAndStockholdersEquity to CommitmentsAndContingencies" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets" xlink:label="Assets" xlink:title="Assets" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrent" xlink:label="AssetsCurrent" xlink:title="AssetsCurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="AssetsCurrent" xlink:title="calculation: Assets to AssetsCurrent" order="0.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsHeldInTrustNoncurrent" xlink:label="AssetsHeldInTrustNoncurrent" xlink:title="AssetsHeldInTrustNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="AssetsHeldInTrustNoncurrent" xlink:title="calculation: Assets to AssetsHeldInTrustNoncurrent" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseNoncurrent" xlink:label="PrepaidExpenseNoncurrent" xlink:title="PrepaidExpenseNoncurrent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="PrepaidExpenseNoncurrent" xlink:title="calculation: Assets to PrepaidExpenseNoncurrent" order="1.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://auldbrasspartners.com/role/IncomeTaxFyDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:title="IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:title="calculation: IncomeTaxExpenseBenefit to IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="CurrentStateAndLocalTaxExpenseBenefit" xlink:title="CurrentStateAndLocalTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="CurrentStateAndLocalTaxExpenseBenefit" xlink:title="calculation: IncomeTaxExpenseBenefit to CurrentStateAndLocalTaxExpenseBenefit" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="CurrentFederalTaxExpenseBenefit" xlink:title="CurrentFederalTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="CurrentFederalTaxExpenseBenefit" xlink:title="calculation: IncomeTaxExpenseBenefit to CurrentFederalTaxExpenseBenefit" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:title="DeferredStateAndLocalIncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:title="calculation: IncomeTaxExpenseBenefit to DeferredStateAndLocalIncomeTaxExpenseBenefit" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="DeferredFederalIncomeTaxExpenseBenefit" xlink:title="DeferredFederalIncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeTaxExpenseBenefit" xlink:to="DeferredFederalIncomeTaxExpenseBenefit" xlink:title="calculation: IncomeTaxExpenseBenefit to DeferredFederalIncomeTaxExpenseBenefit" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="EffectiveIncomeTaxRateContinuingOperations" xlink:title="EffectiveIncomeTaxRateContinuingOperations" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_EffectiveIncomeTaxRateReconciliationChangesInFairValueOfWarrantLiabilityPercent" xlink:label="EffectiveIncomeTaxRateReconciliationChangesInFairValueOfWarrantLiabilityPercent" xlink:title="EffectiveIncomeTaxRateReconciliationChangesInFairValueOfWarrantLiabilityPercent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EffectiveIncomeTaxRateContinuingOperations" xlink:to="EffectiveIncomeTaxRateReconciliationChangesInFairValueOfWarrantLiabilityPercent" xlink:title="calculation: EffectiveIncomeTaxRateContinuingOperations to EffectiveIncomeTaxRateReconciliationChangesInFairValueOfWarrantLiabilityPercent" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:label="EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:title="EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EffectiveIncomeTaxRateContinuingOperations" xlink:to="EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:title="calculation: EffectiveIncomeTaxRateContinuingOperations to EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:title="EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EffectiveIncomeTaxRateContinuingOperations" xlink:to="EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:title="calculation: EffectiveIncomeTaxRateContinuingOperations to EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:label="EffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:title="EffectiveIncomeTaxRateReconciliationOtherAdjustments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EffectiveIncomeTaxRateContinuingOperations" xlink:to="EffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:title="calculation: EffectiveIncomeTaxRateContinuingOperations to EffectiveIncomeTaxRateReconciliationOtherAdjustments" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_EffectiveIncomeTaxRateReconciliationTransactionCostAllocatedToWarrantLiabilityPercent" xlink:label="EffectiveIncomeTaxRateReconciliationTransactionCostAllocatedToWarrantLiabilityPercent" xlink:title="EffectiveIncomeTaxRateReconciliationTransactionCostAllocatedToWarrantLiabilityPercent" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EffectiveIncomeTaxRateContinuingOperations" xlink:to="EffectiveIncomeTaxRateReconciliationTransactionCostAllocatedToWarrantLiabilityPercent" xlink:title="calculation: EffectiveIncomeTaxRateContinuingOperations to EffectiveIncomeTaxRateReconciliationTransactionCostAllocatedToWarrantLiabilityPercent" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:title="EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="EffectiveIncomeTaxRateContinuingOperations" xlink:to="EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:title="calculation: EffectiveIncomeTaxRateContinuingOperations to EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="DeferredTaxAssetsNet" xlink:title="DeferredTaxAssetsNet" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="DeferredTaxAssetsValuationAllowance" xlink:title="DeferredTaxAssetsValuationAllowance" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsNet" xlink:to="DeferredTaxAssetsValuationAllowance" xlink:title="calculation: DeferredTaxAssetsNet to DeferredTaxAssetsValuationAllowance" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="DeferredTaxAssetsGross" xlink:title="DeferredTaxAssetsGross" />
    <link:loc xlink:type="locator" xlink:href="fiac-20231130.xsd#fiac_DeferredTaxAssetsOrganizationalOrStartupCosts" xlink:label="DeferredTaxAssetsOrganizationalOrStartupCosts" xlink:title="DeferredTaxAssetsOrganizationalOrStartupCosts" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="DeferredTaxAssetsOrganizationalOrStartupCosts" xlink:title="calculation: DeferredTaxAssetsGross to DeferredTaxAssetsOrganizationalOrStartupCosts" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="DeferredTaxAssetsOperatingLossCarryforwards" xlink:title="DeferredTaxAssetsOperatingLossCarryforwards" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsGross" xlink:to="DeferredTaxAssetsOperatingLossCarryforwards" xlink:title="calculation: DeferredTaxAssetsGross to DeferredTaxAssetsOperatingLossCarryforwards" order="1.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="DeferredTaxAssetsNet" xlink:to="DeferredTaxAssetsGross" xlink:title="calculation: DeferredTaxAssetsNet to DeferredTaxAssetsGross" order="1.0" weight="1.0" />
  </link:calculationLink>
</link:linkbase>
