Finding the Fourth Proportional to 2,387.71, 3,581.97 and 744.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.71 : 3,581.97 = 744.22 : x
2. Step 2: Convert to fraction form
   2,387.71/3,581.97 = 744.22/x
3. Step 3: Cross multiply
   2,387.71x = 3,581.97 × 744.22
4. Step 4: Simplify right side
   2,387.71x = 2,665,773.71
5. Step 5: Solve for x
   x = 2,665,773.71/2,387.71
6. Step 6: Final answer
   x = 1,116.46