Finding the Fourth Proportional to 1,097.55, 1,513.47 and 724.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.55 : 1,513.47 = 724.04 : x
2. Step 2: Convert to fraction form
   1,097.55/1,513.47 = 724.04/x
3. Step 3: Cross multiply
   1,097.55x = 1,513.47 × 724.04
4. Step 4: Simplify right side
   1,097.55x = 1,095,809.57
5. Step 5: Solve for x
   x = 1,095,809.57/1,097.55
6. Step 6: Final answer
   x = 998.41