Finding the Fourth Proportional to 3,960.29, 5,464.86 and 2,191.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,960.29 : 5,464.86 = 2,191.46 : x
2. Step 2: Convert to fraction form
   3,960.29/5,464.86 = 2,191.46/x
3. Step 3: Cross multiply
   3,960.29x = 5,464.86 × 2,191.46
4. Step 4: Simplify right side
   3,960.29x = 11,976,022.10
5. Step 5: Solve for x
   x = 11,976,022.10/3,960.29
6. Step 6: Final answer
   x = 3,024.03