Finding the Fourth Proportional to 1,494.57, 2,240.78 and 763.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.57 : 2,240.78 = 763.59 : x
2. Step 2: Convert to fraction form
   1,494.57/2,240.78 = 763.59/x
3. Step 3: Cross multiply
   1,494.57x = 2,240.78 × 763.59
4. Step 4: Simplify right side
   1,494.57x = 1,711,033.38
5. Step 5: Solve for x
   x = 1,711,033.38/1,494.57
6. Step 6: Final answer
   x = 1,144.83