Finding the Fourth Proportional to 1,200.30, 1,655.32 and 757.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.30 : 1,655.32 = 757.42 : x
2. Step 2: Convert to fraction form
   1,200.30/1,655.32 = 757.42/x
3. Step 3: Cross multiply
   1,200.30x = 1,655.32 × 757.42
4. Step 4: Simplify right side
   1,200.30x = 1,253,772.47
5. Step 5: Solve for x
   x = 1,253,772.47/1,200.30
6. Step 6: Final answer
   x = 1,044.55