Finding the Fourth Proportional to 1,098.72, 1,516.32 and 706.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098.72 : 1,516.32 = 706.32 : x
2. Step 2: Convert to fraction form
   1,098.72/1,516.32 = 706.32/x
3. Step 3: Cross multiply
   1,098.72x = 1,516.32 × 706.32
4. Step 4: Simplify right side
   1,098.72x = 1,071,007.14
5. Step 5: Solve for x
   x = 1,071,007.14/1,098.72
6. Step 6: Final answer
   x = 974.78