Finding the Fourth Proportional to 6,080.79, 8,391.30 and 3,428.16

Step by Step Solution

1. Step 1: Write the proportion equation
   6,080.79 : 8,391.30 = 3,428.16 : x
2. Step 2: Convert to fraction form
   6,080.79/8,391.30 = 3,428.16/x
3. Step 3: Cross multiply
   6,080.79x = 8,391.30 × 3,428.16
4. Step 4: Simplify right side
   6,080.79x = 28,766,719.01
5. Step 5: Solve for x
   x = 28,766,719.01/6,080.79
6. Step 6: Final answer
   x = 4,730.75