Finding the Fourth Proportional to 3,960.20, 5,465.00 and 2,191.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,960.20 : 5,465.00 = 2,191.83 : x
2. Step 2: Convert to fraction form
   3,960.20/5,465.00 = 2,191.83/x
3. Step 3: Cross multiply
   3,960.20x = 5,465.00 × 2,191.83
4. Step 4: Simplify right side
   3,960.20x = 11,978,335.94
5. Step 5: Solve for x
   x = 11,978,335.94/3,960.20
6. Step 6: Final answer
   x = 3,024.68