26. If X is the present value of a perpetuity of 1 per year with the first payment at the end of the second year and 20X is the present value of a series of annual payments 1, 2, 3, with the first payment at the end of the third year, find d. 26. If X is the present value of a perpetuity of 1 per year with the first payment at the end of the second year and 20X is the present value of a series of annual payments 1, 2, 3, with the first payment at the end of the third year, find d