Finding the Fourth Proportional to 2,387.86, 3,581.34 and 744.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.86 : 3,581.34 = 744.16 : x
2. Step 2: Convert to fraction form
   2,387.86/3,581.34 = 744.16/x
3. Step 3: Cross multiply
   2,387.86x = 3,581.34 × 744.16
4. Step 4: Simplify right side
   2,387.86x = 2,665,089.97
5. Step 5: Solve for x
   x = 2,665,089.97/2,387.86
6. Step 6: Final answer
   x = 1,116.10