Finding the Fourth Proportional to 3,912.58, 5,399.46 and 2,341.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,912.58 : 5,399.46 = 2,341.57 : x
2. Step 2: Convert to fraction form
   3,912.58/5,399.46 = 2,341.57/x
3. Step 3: Cross multiply
   3,912.58x = 5,399.46 × 2,341.57
4. Step 4: Simplify right side
   3,912.58x = 12,643,213.55
5. Step 5: Solve for x
   x = 12,643,213.55/3,912.58
6. Step 6: Final answer
   x = 3,231.43