Finding the Fourth Proportional to 3,965.13, 5,472.04 and 2,196.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,965.13 : 5,472.04 = 2,196.73 : x
2. Step 2: Convert to fraction form
   3,965.13/5,472.04 = 2,196.73/x
3. Step 3: Cross multiply
   3,965.13x = 5,472.04 × 2,196.73
4. Step 4: Simplify right side
   3,965.13x = 12,020,594.43
5. Step 5: Solve for x
   x = 12,020,594.43/3,965.13
6. Step 6: Final answer
   x = 3,031.58