Consider the loading shown. The allowable normal stress for the steel used is $164$MPa.

Determine the section modulus and select the most economical wide$-$flange beam to support the loading shown using the table given

below. $($Round the final answer to the nearest whole number. You must provide an answer before moving to the next part.$)$

The section modulus is

${10}^{3}m{m}^3.$

The most economical flange is $($Click to select$).$