Finding the Fourth Proportional to 3,964.63, 5,471.18 and 2,196.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.63 : 5,471.18 = 2,196.24 : x
2. Step 2: Convert to fraction form
   3,964.63/5,471.18 = 2,196.24/x
3. Step 3: Cross multiply
   3,964.63x = 5,471.18 × 2,196.24
4. Step 4: Simplify right side
   3,964.63x = 12,016,025.75
5. Step 5: Solve for x
   x = 12,016,025.75/3,964.63
6. Step 6: Final answer
   x = 3,030.80