Use graphical approximation techniques to answer the question. When would an ordinary annuity consisting of quarterly payments of $592.28 at 5% compounded quarterly be worth more than a principal of $6900 invested at 4% simple interest? years. The annuity would be worth more than the principal in approximately (Round to one decimal place as needed.) Use graphical approximation techniques to answer the question. When would an ordinary annuity consisting of quarterly payments of $592.28 at 5% compounded quarterly be worth more than a principal of $6900 invested at 4% simple interest? years. The annuity would be worth more than the principal in approximately (Round to one decimal place as needed.)