Finding the Fourth Proportional to 2,752.32, 4,128.52 and 903.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,752.32 : 4,128.52 = 903.52 : x
2. Step 2: Convert to fraction form
   2,752.32/4,128.52 = 903.52/x
3. Step 3: Cross multiply
   2,752.32x = 4,128.52 × 903.52
4. Step 4: Simplify right side
   2,752.32x = 3,730,200.39
5. Step 5: Solve for x
   x = 3,730,200.39/2,752.32
6. Step 6: Final answer
   x = 1,355.29