Finding the Fourth Proportional to 2,500.56, 3,747.63 and 939.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.56 : 3,747.63 = 939.15 : x
2. Step 2: Convert to fraction form
   2,500.56/3,747.63 = 939.15/x
3. Step 3: Cross multiply
   2,500.56x = 3,747.63 × 939.15
4. Step 4: Simplify right side
   2,500.56x = 3,519,586.71
5. Step 5: Solve for x
   x = 3,519,586.71/2,500.56
6. Step 6: Final answer
   x = 1,407.52