Finding the Fourth Proportional to 3,964.28, 5,947.31 and 2,114.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.28 : 5,947.31 = 2,114.42 : x
2. Step 2: Convert to fraction form
   3,964.28/5,947.31 = 2,114.42/x
3. Step 3: Cross multiply
   3,964.28x = 5,947.31 × 2,114.42
4. Step 4: Simplify right side
   3,964.28x = 12,575,100.64
5. Step 5: Solve for x
   x = 12,575,100.64/3,964.28
6. Step 6: Final answer
   x = 3,172.10