Finding the Fourth Proportional to 1,099.34, 1,516.52 and 656.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.34 : 1,516.52 = 656.47 : x
2. Step 2: Convert to fraction form
   1,099.34/1,516.52 = 656.47/x
3. Step 3: Cross multiply
   1,099.34x = 1,516.52 × 656.47
4. Step 4: Simplify right side
   1,099.34x = 995,553.42
5. Step 5: Solve for x
   x = 995,553.42/1,099.34
6. Step 6: Final answer
   x = 905.59