John has an investment opportunity that promises to pay him $17,080 in four years. Suppose the opportunity requires John to invest $14,600 today. (FV of $1, PV of $1, FVA of $1, PVA of $1, FVAD of $1 and PVAD of $1) (Use appropriate factor(s) from the tables provided.)
What is the interest rate John would earn on this investment?