Finding the Fourth Proportional to 3,964.68, 5,471.01 and 2,196.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.68 : 5,471.01 = 2,196.18 : x
2. Step 2: Convert to fraction form
   3,964.68/5,471.01 = 2,196.18/x
3. Step 3: Cross multiply
   3,964.68x = 5,471.01 × 2,196.18
4. Step 4: Simplify right side
   3,964.68x = 12,015,322.74
5. Step 5: Solve for x
   x = 12,015,322.74/3,964.68
6. Step 6: Final answer
   x = 3,030.59