Finding the Fourth Proportional to 3,892.56, 5,371.74 and 2,495.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,892.56 : 5,371.74 = 2,495.31 : x
2. Step 2: Convert to fraction form
   3,892.56/5,371.74 = 2,495.31/x
3. Step 3: Cross multiply
   3,892.56x = 5,371.74 × 2,495.31
4. Step 4: Simplify right side
   3,892.56x = 13,404,156.54
5. Step 5: Solve for x
   x = 13,404,156.54/3,892.56
6. Step 6: Final answer
   x = 3,443.53