Finding the Fourth Proportional to 3,965.33, 5,471.94 and 2,196.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,965.33 : 5,471.94 = 2,196.83 : x
2. Step 2: Convert to fraction form
   3,965.33/5,471.94 = 2,196.83/x
3. Step 3: Cross multiply
   3,965.33x = 5,471.94 × 2,196.83
4. Step 4: Simplify right side
   3,965.33x = 12,020,894.59
5. Step 5: Solve for x
   x = 12,020,894.59/3,965.33
6. Step 6: Final answer
   x = 3,031.50