Finding the Fourth Proportional to 3,063.27, 4,227.72 and 2,979.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,063.27 : 4,227.72 = 2,979.88 : x
2. Step 2: Convert to fraction form
   3,063.27/4,227.72 = 2,979.88/x
3. Step 3: Cross multiply
   3,063.27x = 4,227.72 × 2,979.88
4. Step 4: Simplify right side
   3,063.27x = 12,598,087.70
5. Step 5: Solve for x
   x = 12,598,087.70/3,063.27
6. Step 6: Final answer
   x = 4,112.63