Problem
(a) Arbitrage Financial is offering an investment with the following cash flows:
| Year | 1 | 2 | 3 | 4 | 
| Cash flow | $200 | $400 | -   $100 | $500 | 
(note that the cash flows in Years 1, 2, and 4 are positive, and the cash flow in Year 3 is negative.)
You observe the following prices of pure discount (i.e., zero-coupon) bonds, which pay a single cash flow of $100 at maturity:
| Price,   $ | Maturity,   years | 
| 95.24 | 1 | 
| 89.85 | 2 | 
| 83.96 | 3 | 
| 77.73 | 4 | 
What is a fair price (to the nearest dollar) for the investment from Arbitrage Financial?
(b) Arbitrage Financial offers another product called a "mystery coupon" bond.  This bond has a face value of $1,000 and a maturity of five years.  The bond pays an annual coupon, but the amount of the coupon is unknown.  However, you know that the price of the bond is $1,052.30, and bonds of similar risk and maturity currently have a yield to maturity of 6.25%. What is the annual coupon payment (to the nearest dollar) on this bond?