Finding the Fourth Proportional to 1,253.95, 1,730.57 and 756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253.95 : 1,730.57 = 756.72 : x
2. Step 2: Convert to fraction form
   1,253.95/1,730.57 = 756.72/x
3. Step 3: Cross multiply
   1,253.95x = 1,730.57 × 756.72
4. Step 4: Simplify right side
   1,253.95x = 1,309,553.15
5. Step 5: Solve for x
   x = 1,309,553.15/1,253.95
6. Step 6: Final answer
   x = 1,044.34