Finding the Fourth Proportional to 1,096.59, 1,513.17 and 617.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.59 : 1,513.17 = 617.96 : x
2. Step 2: Convert to fraction form
   1,096.59/1,513.17 = 617.96/x
3. Step 3: Cross multiply
   1,096.59x = 1,513.17 × 617.96
4. Step 4: Simplify right side
   1,096.59x = 935,070.97
5. Step 5: Solve for x
   x = 935,070.97/1,096.59
6. Step 6: Final answer
   x = 852.71