Finding the Fourth Proportional to 2,469.68, 3,405.59 and 2,116.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,469.68 : 3,405.59 = 2,116.82 : x
2. Step 2: Convert to fraction form
   2,469.68/3,405.59 = 2,116.82/x
3. Step 3: Cross multiply
   2,469.68x = 3,405.59 × 2,116.82
4. Step 4: Simplify right side
   2,469.68x = 7,208,993.41
5. Step 5: Solve for x
   x = 7,208,993.41/2,469.68
6. Step 6: Final answer
   x = 2,919.00