A fixed interest stock with an optional redemption date at any time between $4$ and $11$ years from the date of isssue is redeemable at $106\%.$ It pays coupons of $7\mathrm{.}1\%$ per annum half$-$yearly in arrears.

An investor, subject to $21\%$ income tax, purchases four months after issue a $12,000$ nominal of the bond and obtains a net effective yield of $6\mathrm{.}3\%$ per annum.

Calculate, to $2$ decimal places, the ex$-$dividend price paid by the investor.