Finding the Fourth Proportional to 2,503.76, 3,755.57 and 772.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.76 : 3,755.57 = 772.38 : x
2. Step 2: Convert to fraction form
   2,503.76/3,755.57 = 772.38/x
3. Step 3: Cross multiply
   2,503.76x = 3,755.57 × 772.38
4. Step 4: Simplify right side
   2,503.76x = 2,900,723.29
5. Step 5: Solve for x
   x = 2,900,723.29/2,503.76
6. Step 6: Final answer
   x = 1,158.55