Finding the Fourth Proportional to 3,940.15, 5,432.82 and 2,943.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940.15 : 5,432.82 = 2,943.67 : x
2. Step 2: Convert to fraction form
   3,940.15/5,432.82 = 2,943.67/x
3. Step 3: Cross multiply
   3,940.15x = 5,432.82 × 2,943.67
4. Step 4: Simplify right side
   3,940.15x = 15,992,429.25
5. Step 5: Solve for x
   x = 15,992,429.25/3,940.15
6. Step 6: Final answer
   x = 4,058.84