Finding the Fourth Proportional to 1,061.66, 1,465.61 and 747.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.66 : 1,465.61 = 747.20 : x
2. Step 2: Convert to fraction form
   1,061.66/1,465.61 = 747.20/x
3. Step 3: Cross multiply
   1,061.66x = 1,465.61 × 747.20
4. Step 4: Simplify right side
   1,061.66x = 1,095,103.79
5. Step 5: Solve for x
   x = 1,095,103.79/1,061.66
6. Step 6: Final answer
   x = 1,031.50