Finding the Fourth Proportional to 1,097.19, 1,513.86 and 654.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.19 : 1,513.86 = 654.87 : x
2. Step 2: Convert to fraction form
   1,097.19/1,513.86 = 654.87/x
3. Step 3: Cross multiply
   1,097.19x = 1,513.86 × 654.87
4. Step 4: Simplify right side
   1,097.19x = 991,381.50
5. Step 5: Solve for x
   x = 991,381.50/1,097.19
6. Step 6: Final answer
   x = 903.56