A company borrowed $4,250,000 at an effective rate of 4.25% for 5 years. To make sure it has the money needed to repay the loan when it comes due, the company is making deposits into a sinking fund at the beginning of each quarter. The sinking fund pays the company 3.21%.

(a) How much will the company need to have at maturity to pay off this loan?

(b) How much should each sinking fund payment be?