Finding the Fourth Proportional to 3,905.94, 5,389.54 and 2,227.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,905.94 : 5,389.54 = 2,227.38 : x
2. Step 2: Convert to fraction form
   3,905.94/5,389.54 = 2,227.38/x
3. Step 3: Cross multiply
   3,905.94x = 5,389.54 × 2,227.38
4. Step 4: Simplify right side
   3,905.94x = 12,004,553.61
5. Step 5: Solve for x
   x = 12,004,553.61/3,905.94
6. Step 6: Final answer
   x = 3,073.41