Finding the Fourth Proportional to 1,096.79, 1,513.58 and 654.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.79 : 1,513.58 = 654.91 : x
2. Step 2: Convert to fraction form
   1,096.79/1,513.58 = 654.91/x
3. Step 3: Cross multiply
   1,096.79x = 1,513.58 × 654.91
4. Step 4: Simplify right side
   1,096.79x = 991,251.62
5. Step 5: Solve for x
   x = 991,251.62/1,096.79
6. Step 6: Final answer
   x = 903.78