Finding the Fourth Proportional to 1,096.91, 1,513.78 and 654.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.91 : 1,513.78 = 654.85 : x
2. Step 2: Convert to fraction form
   1,096.91/1,513.78 = 654.85/x
3. Step 3: Cross multiply
   1,096.91x = 1,513.78 × 654.85
4. Step 4: Simplify right side
   1,096.91x = 991,298.83
5. Step 5: Solve for x
   x = 991,298.83/1,096.91
6. Step 6: Final answer
   x = 903.72