Finding the Fourth Proportional to 1,098.10, 1,515.34 and 600.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098.10 : 1,515.34 = 600.72 : x
2. Step 2: Convert to fraction form
   1,098.10/1,515.34 = 600.72/x
3. Step 3: Cross multiply
   1,098.10x = 1,515.34 × 600.72
4. Step 4: Simplify right side
   1,098.10x = 910,295.04
5. Step 5: Solve for x
   x = 910,295.04/1,098.10
6. Step 6: Final answer
   x = 828.98