Finding the Fourth Proportional to 3,939.59, 5,880.56 and 3,472.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939.59 : 5,880.56 = 3,472.53 : x
2. Step 2: Convert to fraction form
   3,939.59/5,880.56 = 3,472.53/x
3. Step 3: Cross multiply
   3,939.59x = 5,880.56 × 3,472.53
4. Step 4: Simplify right side
   3,939.59x = 20,420,374.25
5. Step 5: Solve for x
   x = 20,420,374.25/3,939.59
6. Step 6: Final answer
   x = 5,183.38