Finding the Fourth Proportional to 3,772.72, 5,659.17 and 2,223.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,772.72 : 5,659.17 = 2,223.61 : x
2. Step 2: Convert to fraction form
   3,772.72/5,659.17 = 2,223.61/x
3. Step 3: Cross multiply
   3,772.72x = 5,659.17 × 2,223.61
4. Step 4: Simplify right side
   3,772.72x = 12,583,787.00
5. Step 5: Solve for x
   x = 12,583,787.00/3,772.72
6. Step 6: Final answer
   x = 3,335.47