Pat receives a series of four annual federally subsidized student loans, each for $5600 at 6.6%. To defray rising costs for her senior year, 3 years after acquiring the first loan she takes out a private student loan for $4300 at 7.6% interest with a term of 10 years and capitalizes the interest for her last year of college. She graduates 9 months after getting the private loan. Payments on all loans are deferred until 6 months after graduation. Find her monthly payment.