Finding the Fourth Proportional to 3,897.38, 5,847.89 and 2,255.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897.38 : 5,847.89 = 2,255.31 : x
2. Step 2: Convert to fraction form
   3,897.38/5,847.89 = 2,255.31/x
3. Step 3: Cross multiply
   3,897.38x = 5,847.89 × 2,255.31
4. Step 4: Simplify right side
   3,897.38x = 13,188,804.80
5. Step 5: Solve for x
   x = 13,188,804.80/3,897.38
6. Step 6: Final answer
   x = 3,384.02