$$
tt{ the factor by which the frequency of light immitted from the star has changed is $frac{f_{observed}}{f_{source}}$, the star is moving towards the observer therefore the sign before the term $frac{v_{source}}{c}$ is a plus:}
$$

$$
begin{align*}
frac{f_{observed}}{f_{source}}&=frac{f_{source}}{f_{source}}(1+frac{v_{source}}{c})\
&=1+frac{36500*10^3}{3*10^8}\
&=boxed{1.12}\
end{align*}
$$

$$
1.12
$$