Finding the Fourth Proportional to 3,964.62, 5,471.31 and 2,196.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.62 : 5,471.31 = 2,196.36 : x
2. Step 2: Convert to fraction form
   3,964.62/5,471.31 = 2,196.36/x
3. Step 3: Cross multiply
   3,964.62x = 5,471.31 × 2,196.36
4. Step 4: Simplify right side
   3,964.62x = 12,016,966.43
5. Step 5: Solve for x
   x = 12,016,966.43/3,964.62
6. Step 6: Final answer
   x = 3,031.05