Finding the Fourth Proportional to 3,856.38, 5,744.78 and 3,617.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,856.38 : 5,744.78 = 3,617.34 : x
2. Step 2: Convert to fraction form
   3,856.38/5,744.78 = 3,617.34/x
3. Step 3: Cross multiply
   3,856.38x = 5,744.78 × 3,617.34
4. Step 4: Simplify right side
   3,856.38x = 20,780,804.40
5. Step 5: Solve for x
   x = 20,780,804.40/3,856.38
6. Step 6: Final answer
   x = 5,388.68