Finding the Fourth Proportional to 3,959.33, 5,460.27 and 3,399.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,959.33 : 5,460.27 = 3,399.62 : x
2. Step 2: Convert to fraction form
   3,959.33/5,460.27 = 3,399.62/x
3. Step 3: Cross multiply
   3,959.33x = 5,460.27 × 3,399.62
4. Step 4: Simplify right side
   3,959.33x = 18,562,843.10
5. Step 5: Solve for x
   x = 18,562,843.10/3,959.33
6. Step 6: Final answer
   x = 4,688.38