Remember that $\displaystyle{236.49}={236.490}\usepackage{cmbright}\Huge\$ . Now compare the digits of 236.486 and 236.490. The digits are the same until the hundredths place, where $\displaystyle{8}<{9}\usepackage{cmbright}\Huge\$ . Therefore, $\displaystyle{236.486}<{236.49}\usepackage{cmbright}\Huge\$ .