Finding the Fourth Proportional to 1,272.55, 1,755.98 and 748.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272.55 : 1,755.98 = 748.48 : x
2. Step 2: Convert to fraction form
   1,272.55/1,755.98 = 748.48/x
3. Step 3: Cross multiply
   1,272.55x = 1,755.98 × 748.48
4. Step 4: Simplify right side
   1,272.55x = 1,314,315.91
5. Step 5: Solve for x
   x = 1,314,315.91/1,272.55
6. Step 6: Final answer
   x = 1,032.82