Problem 9-21 Forward Interest Rates (LO3, CFA8) Consider the following spot interest rates for maturities of one, two, three, and four years = 4.3% r2 = 4.9% 3 = 56% = 6.4% what are the following forward rates, where , k refers to a forward rate for the period beginning in one year and extending for k years? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) f1,1 f1,2 f1,3 5.501 %