Finding the Fourth Proportional to 2,500.02, 3,749.34 and 939.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.02 : 3,749.34 = 939.90 : x
2. Step 2: Convert to fraction form
   2,500.02/3,749.34 = 939.90/x
3. Step 3: Cross multiply
   2,500.02x = 3,749.34 × 939.90
4. Step 4: Simplify right side
   2,500.02x = 3,524,004.67
5. Step 5: Solve for x
   x = 3,524,004.67/2,500.02
6. Step 6: Final answer
   x = 1,409.59