Numerical Analysis — Simpson's rule area computation

Consider the following table:

$$\begin{array}{c|ccccc} x & 0 & 1/4 & 1/2 & 3/4 & 1 \\\hline f(x) & 1 & 4/5 & 2/3 & 4/7 & 1/2 \end{array}$$

Simpson's one-third rule with 4 equal intervals is used to approximate the area bounded by the curve $f(x)$ and $x$-axis from $x = 0$ to $x = 1$. What is the approximate value of the area?