Finding the Fourth Proportional to 1,200.71, 1,656.72 and 759.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.71 : 1,656.72 = 759.20 : x
2. Step 2: Convert to fraction form
   1,200.71/1,656.72 = 759.20/x
3. Step 3: Cross multiply
   1,200.71x = 1,656.72 × 759.20
4. Step 4: Simplify right side
   1,200.71x = 1,257,773.54
5. Step 5: Solve for x
   x = 1,257,773.54/1,200.71
6. Step 6: Final answer
   x = 1,047.52