Finding the Fourth Proportional to 2,500.72, 3,753.35 and 1,331.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.72 : 3,753.35 = 1,331.70 : x
2. Step 2: Convert to fraction form
   2,500.72/3,753.35 = 1,331.70/x
3. Step 3: Cross multiply
   2,500.72x = 3,753.35 × 1,331.70
4. Step 4: Simplify right side
   2,500.72x = 4,998,344.22
5. Step 5: Solve for x
   x = 4,998,344.22/2,500.72
6. Step 6: Final answer
   x = 1,998.76