Finding the Fourth Proportional to 3,964.35, 5,470.25 and 2,196.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.35 : 5,470.25 = 2,196.06 : x
2. Step 2: Convert to fraction form
   3,964.35/5,470.25 = 2,196.06/x
3. Step 3: Cross multiply
   3,964.35x = 5,470.25 × 2,196.06
4. Step 4: Simplify right side
   3,964.35x = 12,012,986.23
5. Step 5: Solve for x
   x = 12,012,986.23/3,964.35
6. Step 6: Final answer
   x = 3,030.25