Finding the Fourth Proportional to 6,080.89, 8,391.61 and 3,428.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,080.89 : 8,391.61 = 3,428.28 : x
2. Step 2: Convert to fraction form
   6,080.89/8,391.61 = 3,428.28/x
3. Step 3: Cross multiply
   6,080.89x = 8,391.61 × 3,428.28
4. Step 4: Simplify right side
   6,080.89x = 28,768,784.29
5. Step 5: Solve for x
   x = 28,768,784.29/6,080.89
6. Step 6: Final answer
   x = 4,731.02