Finding the Fourth Proportional to 1,103.59, 1,654.74 and 757.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.59 : 1,654.74 = 757.31 : x
2. Step 2: Convert to fraction form
   1,103.59/1,654.74 = 757.31/x
3. Step 3: Cross multiply
   1,103.59x = 1,654.74 × 757.31
4. Step 4: Simplify right side
   1,103.59x = 1,253,147.36
5. Step 5: Solve for x
   x = 1,253,147.36/1,103.59
6. Step 6: Final answer
   x = 1,135.52