Finding the Fourth Proportional to 2,387.24, 3,581.31 and 743.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.24 : 3,581.31 = 743.73 : x
2. Step 2: Convert to fraction form
   2,387.24/3,581.31 = 743.73/x
3. Step 3: Cross multiply
   2,387.24x = 3,581.31 × 743.73
4. Step 4: Simplify right side
   2,387.24x = 2,663,527.69
5. Step 5: Solve for x
   x = 2,663,527.69/2,387.24
6. Step 6: Final answer
   x = 1,115.74