Finding the Fourth Proportional to 6,080.75, 8,391.71 and 3,428.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,080.75 : 8,391.71 = 3,428.15 : x
2. Step 2: Convert to fraction form
   6,080.75/8,391.71 = 3,428.15/x
3. Step 3: Cross multiply
   6,080.75x = 8,391.71 × 3,428.15
4. Step 4: Simplify right side
   6,080.75x = 28,768,040.64
5. Step 5: Solve for x
   x = 28,768,040.64/6,080.75
6. Step 6: Final answer
   x = 4,731.00