Finding the Fourth Proportional to 3,918.27, 5,406.55 and 2,324.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,918.27 : 5,406.55 = 2,324.30 : x
2. Step 2: Convert to fraction form
   3,918.27/5,406.55 = 2,324.30/x
3. Step 3: Cross multiply
   3,918.27x = 5,406.55 × 2,324.30
4. Step 4: Simplify right side
   3,918.27x = 12,566,411.32
5. Step 5: Solve for x
   x = 12,566,411.32/3,918.27
6. Step 6: Final answer
   x = 3,207.13