without using excel please

1. The term and price of zero-coupon bonds are given in the following table: Price Time to Maturity 1 2 3 4 .98 91 .87 .83 John enters into a four-year swap. He wants to swap the floating interest rates for a fixed interest rate. The level notional amount of the swap is 1000 each year. Determine the swap rate. a. 2.04% b. 4.05% c. 4.74% d. 4.77% e. 4.83%