Finding the Fourth Proportional to 3,744.89, 5,617.31 and 971.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,744.89 : 5,617.31 = 971.32 : x
2. Step 2: Convert to fraction form
   3,744.89/5,617.31 = 971.32/x
3. Step 3: Cross multiply
   3,744.89x = 5,617.31 × 971.32
4. Step 4: Simplify right side
   3,744.89x = 5,456,205.55
5. Step 5: Solve for x
   x = 5,456,205.55/3,744.89
6. Step 6: Final answer
   x = 1,456.97