Finding the Fourth Proportional to 2,752.56, 4,129.20 and 903.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,752.56 : 4,129.20 = 903.18 : x
2. Step 2: Convert to fraction form
   2,752.56/4,129.20 = 903.18/x
3. Step 3: Cross multiply
   2,752.56x = 4,129.20 × 903.18
4. Step 4: Simplify right side
   2,752.56x = 3,729,410.86
5. Step 5: Solve for x
   x = 3,729,410.86/2,752.56
6. Step 6: Final answer
   x = 1,354.89