Finding the Fourth Proportional to 3,964.30, 5,470.77 and 2,196

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.30 : 5,470.77 = 2,196 : x
2. Step 2: Convert to fraction form
   3,964.30/5,470.77 = 2,196/x
3. Step 3: Cross multiply
   3,964.30x = 5,470.77 × 2,196
4. Step 4: Simplify right side
   3,964.30x = 12,013,810.92
5. Step 5: Solve for x
   x = 12,013,810.92/3,964.30
6. Step 6: Final answer
   x = 3,030.50