Consider a 4-year amortizing loan. You borrow $468,000 initially, and repay it in four equal annual year-end payments. a. If the interest rate is 6.61%, calculate the annual payment. (Do not round intermediate calculations. Round your answer to 2 decimal places.) b. Prepare an amortization schedule. (Leave no cells blank - be certain to enter "0" wherever required. Do not round intermediate calculations. Round your answers to 2 decimal places.) c1. What is the loan balance at the end of year 1? (Do not round intermediate calculations. Round your answer to 2 decimal places.) c-2. Is it the present value of the remaining loan payments