Screen Height    X-Size    Y-Size        approx X-Size
14               416       224           410.3816
19               560       304           556.9465
24               704       384           703.5114
28               824       448           820.7633
17               504       272           498.3206
20               592       320           586.2595
16               472       256           469.0076
28               824       448           820.7633
7                208       112           205.1908
10.5             312       168           307.7862

All X-Size values were raised to the nearest number divisible by 8