Finding the Fourth Proportional to 5,217.67, 7,200.27 and 2,827.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,217.67 : 7,200.27 = 2,827.55 : x
2. Step 2: Convert to fraction form
   5,217.67/7,200.27 = 2,827.55/x
3. Step 3: Cross multiply
   5,217.67x = 7,200.27 × 2,827.55
4. Step 4: Simplify right side
   5,217.67x = 20,359,123.44
5. Step 5: Solve for x
   x = 20,359,123.44/5,217.67
6. Step 6: Final answer
   x = 3,901.96