Michael Sanchez purchased a condominium for $97,000. He made a 20% down payment and financed the balance with a 30 year, 5% fixed-rate mortgage. (Round your answers to the nearest cent. Use this table, if necessary.) (a) What is the amount (in \$) of the monthly principal and interest portion, PI, of Michael's loan? $ (b) Construct an amortization schedule for the first four months of Michael's mortgage. (c) If the annual property taxes are \$1,670 and the hazard insurance premium is $640 per year, what is the total monthly PITI of Michael's loan (in \$)? $