50% of 8879.50 can be represented below
[tex]\begin{gathered} 50\text{ \% of 8879.50} \\ \frac{50}{100}\times8879.50=\frac{443975}{100}=4439.75 \end{gathered}[/tex]Multiplied by the coverture fraction where numerator will be 11 years and 8 months. And the denominator will be 33
[tex]4439.75\times\frac{11.8}{33}=\frac{52389.05}{33}=1587.5469697\approx1587.55[/tex]