Finding the Fourth Proportional to 3,964.52, 5,471.06 and 2,196.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.52 : 5,471.06 = 2,196.16 : x
2. Step 2: Convert to fraction form
   3,964.52/5,471.06 = 2,196.16/x
3. Step 3: Cross multiply
   3,964.52x = 5,471.06 × 2,196.16
4. Step 4: Simplify right side
   3,964.52x = 12,015,298.47
5. Step 5: Solve for x
   x = 12,015,298.47/3,964.52
6. Step 6: Final answer
   x = 3,030.71