Finding the Fourth Proportional to 2,827.72, 3,901.46 and 2,228.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,827.72 : 3,901.46 = 2,228.35 : x
2. Step 2: Convert to fraction form
   2,827.72/3,901.46 = 2,228.35/x
3. Step 3: Cross multiply
   2,827.72x = 3,901.46 × 2,228.35
4. Step 4: Simplify right side
   2,827.72x = 8,693,807.25
5. Step 5: Solve for x
   x = 8,693,807.25/2,827.72
6. Step 6: Final answer
   x = 3,074.50