Finding the Fourth Proportional to 1,099.76, 1,517.67 and 707.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.76 : 1,517.67 = 707.04 : x
2. Step 2: Convert to fraction form
   1,099.76/1,517.67 = 707.04/x
3. Step 3: Cross multiply
   1,099.76x = 1,517.67 × 707.04
4. Step 4: Simplify right side
   1,099.76x = 1,073,053.40
5. Step 5: Solve for x
   x = 1,073,053.40/1,099.76
6. Step 6: Final answer
   x = 975.72