Finding the Fourth Proportional to 5,279.27, 7,922.52 and 2,815.83

Step by Step Solution

1. Step 1: Write the proportion equation
   5,279.27 : 7,922.52 = 2,815.83 : x
2. Step 2: Convert to fraction form
   5,279.27/7,922.52 = 2,815.83/x
3. Step 3: Cross multiply
   5,279.27x = 7,922.52 × 2,815.83
4. Step 4: Simplify right side
   5,279.27x = 22,308,469.49
5. Step 5: Solve for x
   x = 22,308,469.49/5,279.27
6. Step 6: Final answer
   x = 4,225.68