Finding the Fourth Proportional to 1,096.83, 1,513.76 and 631.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.83 : 1,513.76 = 631.17 : x
2. Step 2: Convert to fraction form
   1,096.83/1,513.76 = 631.17/x
3. Step 3: Cross multiply
   1,096.83x = 1,513.76 × 631.17
4. Step 4: Simplify right side
   1,096.83x = 955,436.74
5. Step 5: Solve for x
   x = 955,436.74/1,096.83
6. Step 6: Final answer
   x = 871.09