Finding the Fourth Proportional to 6,274.20, 8,658.72 and 3,479.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,274.20 : 8,658.72 = 3,479.88 : x
2. Step 2: Convert to fraction form
   6,274.20/8,658.72 = 3,479.88/x
3. Step 3: Cross multiply
   6,274.20x = 8,658.72 × 3,479.88
4. Step 4: Simplify right side
   6,274.20x = 30,131,306.55
5. Step 5: Solve for x
   x = 30,131,306.55/6,274.20
6. Step 6: Final answer
   x = 4,802.41