\(\frac{\text{science}}{\text{graduates}}\) = \(\frac{\theta}{360}\) x 4320

where \(\theta\) + 100 + 80 + 108 = 360

\(\theta\) = 360 - 288 = 360

\(\frac{\text{science}}{\text{graduates}}\) = \(\frac{72}{360} \times 4320\)

= 864