Finding the Fourth Proportional to 6,078.31, 8,388.01 and 3,389.49

Step by Step Solution

1. Step 1: Write the proportion equation
   6,078.31 : 8,388.01 = 3,389.49 : x
2. Step 2: Convert to fraction form
   6,078.31/8,388.01 = 3,389.49/x
3. Step 3: Cross multiply
   6,078.31x = 8,388.01 × 3,389.49
4. Step 4: Simplify right side
   6,078.31x = 28,431,076.01
5. Step 5: Solve for x
   x = 28,431,076.01/6,078.31
6. Step 6: Final answer
   x = 4,677.46