Numerical Analysis — linear interpolation of log10(1+x)

Let $f(x)=\log_{10}(1+x)$ with $x_0=1$ and $x_1=1.1$. What is the approximate value of $f(1.04)$ obtained by using linear interpolation? [Given that $\log_{10}2=0.301030$ and $\log_{10}2.1=0.322219$]