Finding the Fourth Proportional to 2,469.67, 3,405.59 and 2,116.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,469.67 : 3,405.59 = 2,116.82 : x
2. Step 2: Convert to fraction form
   2,469.67/3,405.59 = 2,116.82/x
3. Step 3: Cross multiply
   2,469.67x = 3,405.59 × 2,116.82
4. Step 4: Simplify right side
   2,469.67x = 7,209,021.02
5. Step 5: Solve for x
   x = 7,209,021.02/2,469.67
6. Step 6: Final answer
   x = 2,919.02