Finding the Fourth Proportional to 3,939.32, 5,436.77 and 2,367.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939.32 : 5,436.77 = 2,367.72 : x
2. Step 2: Convert to fraction form
   3,939.32/5,436.77 = 2,367.72/x
3. Step 3: Cross multiply
   3,939.32x = 5,436.77 × 2,367.72
4. Step 4: Simplify right side
   3,939.32x = 12,872,737.23
5. Step 5: Solve for x
   x = 12,872,737.23/3,939.32
6. Step 6: Final answer
   x = 3,267.76