Finding the Fourth Proportional to 2,139.03, 3,209.02 and 752.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139.03 : 3,209.02 = 752.46 : x
2. Step 2: Convert to fraction form
   2,139.03/3,209.02 = 752.46/x
3. Step 3: Cross multiply
   2,139.03x = 3,209.02 × 752.46
4. Step 4: Simplify right side
   2,139.03x = 2,414,645.27
5. Step 5: Solve for x
   x = 2,414,645.27/2,139.03
6. Step 6: Final answer
   x = 1,128.85