Finding the Fourth Proportional to 3,879.82, 5,354.28 and 2,388.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,879.82 : 5,354.28 = 2,388.62 : x
2. Step 2: Convert to fraction form
   3,879.82/5,354.28 = 2,388.62/x
3. Step 3: Cross multiply
   3,879.82x = 5,354.28 × 2,388.62
4. Step 4: Simplify right side
   3,879.82x = 12,789,340.29
5. Step 5: Solve for x
   x = 12,789,340.29/3,879.82
6. Step 6: Final answer
   x = 3,296.37