Finding the Fourth Proportional to 2,892.56, 3,993.42 and 2,228.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,892.56 : 3,993.42 = 2,228.12 : x
2. Step 2: Convert to fraction form
   2,892.56/3,993.42 = 2,228.12/x
3. Step 3: Cross multiply
   2,892.56x = 3,993.42 × 2,228.12
4. Step 4: Simplify right side
   2,892.56x = 8,897,818.97
5. Step 5: Solve for x
   x = 8,897,818.97/2,892.56
6. Step 6: Final answer
   x = 3,076.11