Finding the Fourth Proportional to 3,957.75, 5,461.71 and 2,386.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,957.75 : 5,461.71 = 2,386.17 : x
2. Step 2: Convert to fraction form
   3,957.75/5,461.71 = 2,386.17/x
3. Step 3: Cross multiply
   3,957.75x = 5,461.71 × 2,386.17
4. Step 4: Simplify right side
   3,957.75x = 13,032,568.55
5. Step 5: Solve for x
   x = 13,032,568.55/3,957.75
6. Step 6: Final answer
   x = 3,292.92