Finding the Fourth Proportional to 1,096.89, 1,513.74 and 654.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.89 : 1,513.74 = 654.78 : x
2. Step 2: Convert to fraction form
   1,096.89/1,513.74 = 654.78/x
3. Step 3: Cross multiply
   1,096.89x = 1,513.74 × 654.78
4. Step 4: Simplify right side
   1,096.89x = 991,166.68
5. Step 5: Solve for x
   x = 991,166.68/1,096.89
6. Step 6: Final answer
   x = 903.62