Finding the Fourth Proportional to 3,921.16, 5,871.20 and 2,068.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921.16 : 5,871.20 = 2,068.42 : x
2. Step 2: Convert to fraction form
   3,921.16/5,871.20 = 2,068.42/x
3. Step 3: Cross multiply
   3,921.16x = 5,871.20 × 2,068.42
4. Step 4: Simplify right side
   3,921.16x = 12,144,107.50
5. Step 5: Solve for x
   x = 12,144,107.50/3,921.16
6. Step 6: Final answer
   x = 3,097.07