Finding the Fourth Proportional to 3,989.55, 5,954.82 and 3,743.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,989.55 : 5,954.82 = 3,743.31 : x
2. Step 2: Convert to fraction form
   3,989.55/5,954.82 = 3,743.31/x
3. Step 3: Cross multiply
   3,989.55x = 5,954.82 × 3,743.31
4. Step 4: Simplify right side
   3,989.55x = 22,290,737.25
5. Step 5: Solve for x
   x = 22,290,737.25/3,989.55
6. Step 6: Final answer
   x = 5,587.28