$$ \frac{365.2425}{4} \times \frac{0.0167}{\pi} = 0.4854 $$ $$ X = \frac{0.5 - Ⳁ_1}{Ⳁ_2 - Ⳁ_1} $$ $$ X = 0.5 - Ⳁ_1 $$