Finding the Fourth Proportional to 1,180.83, 1,767.52 and 717.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.83 : 1,767.52 = 717.15 : x
2. Step 2: Convert to fraction form
   1,180.83/1,767.52 = 717.15/x
3. Step 3: Cross multiply
   1,180.83x = 1,767.52 × 717.15
4. Step 4: Simplify right side
   1,180.83x = 1,267,584.49
5. Step 5: Solve for x
   x = 1,267,584.49/1,180.83
6. Step 6: Final answer
   x = 1,073.47