An individual invests a series of level payments at the end of each quarter into a sinking fund, with no withdrawals allowed at the following annual levels:

1321 per annum for the first 6 years followed by

1994 per annum until the end of year 23 (inclusive).

Assuming a nominal rate of interest of 6.9% pa convertible quarterly throughout the entire period, calculate, to 2 decimal places, the value of this investment at the time of withdrawal of t=31 years.