Finding the Fourth Proportional to 2,822.88, 3,861.02 and 2,777.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,822.88 : 3,861.02 = 2,777.52 : x
2. Step 2: Convert to fraction form
   2,822.88/3,861.02 = 2,777.52/x
3. Step 3: Cross multiply
   2,822.88x = 3,861.02 × 2,777.52
4. Step 4: Simplify right side
   2,822.88x = 10,724,046.38
5. Step 5: Solve for x
   x = 10,724,046.38/2,822.88
6. Step 6: Final answer
   x = 3,798.97