Finding the Fourth Proportional to 1,096.88, 1,513.26 and 724.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.88 : 1,513.26 = 724.05 : x
2. Step 2: Convert to fraction form
   1,096.88/1,513.26 = 724.05/x
3. Step 3: Cross multiply
   1,096.88x = 1,513.26 × 724.05
4. Step 4: Simplify right side
   1,096.88x = 1,095,675.90
5. Step 5: Solve for x
   x = 1,095,675.90/1,096.88
6. Step 6: Final answer
   x = 998.90