Finding the Fourth Proportional to 3,906.33, 5,390.55 and 2,227.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,906.33 : 5,390.55 = 2,227.83 : x
2. Step 2: Convert to fraction form
   3,906.33/5,390.55 = 2,227.83/x
3. Step 3: Cross multiply
   3,906.33x = 5,390.55 × 2,227.83
4. Step 4: Simplify right side
   3,906.33x = 12,009,229.01
5. Step 5: Solve for x
   x = 12,009,229.01/3,906.33
6. Step 6: Final answer
   x = 3,074.30