Finding the Fourth Proportional to 3,906.04, 5,390.94 and 2,227.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,906.04 : 5,390.94 = 2,227.45 : x
2. Step 2: Convert to fraction form
   3,906.04/5,390.94 = 2,227.45/x
3. Step 3: Cross multiply
   3,906.04x = 5,390.94 × 2,227.45
4. Step 4: Simplify right side
   3,906.04x = 12,008,049.30
5. Step 5: Solve for x
   x = 12,008,049.30/3,906.04
6. Step 6: Final answer
   x = 3,074.23