Finding the Fourth Proportional to 1,144.73, 1,579.32 and 724.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.73 : 1,579.32 = 724.93 : x
2. Step 2: Convert to fraction form
   1,144.73/1,579.32 = 724.93/x
3. Step 3: Cross multiply
   1,144.73x = 1,579.32 × 724.93
4. Step 4: Simplify right side
   1,144.73x = 1,144,892.50
5. Step 5: Solve for x
   x = 1,144,892.50/1,144.73
6. Step 6: Final answer
   x = 1,000.14