Finding the Fourth Proportional to 3,958.83, 5,462.57 and 2,280.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,958.83 : 5,462.57 = 2,280.31 : x
2. Step 2: Convert to fraction form
   3,958.83/5,462.57 = 2,280.31/x
3. Step 3: Cross multiply
   3,958.83x = 5,462.57 × 2,280.31
4. Step 4: Simplify right side
   3,958.83x = 12,456,353.00
5. Step 5: Solve for x
   x = 12,456,353.00/3,958.83
6. Step 6: Final answer
   x = 3,146.47