Finding the Fourth Proportional to 2,550.09, 3,515.90 and 1,664.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.09 : 3,515.90 = 1,664.49 : x
2. Step 2: Convert to fraction form
   2,550.09/3,515.90 = 1,664.49/x
3. Step 3: Cross multiply
   2,550.09x = 3,515.90 × 1,664.49
4. Step 4: Simplify right side
   2,550.09x = 5,852,172.07
5. Step 5: Solve for x
   x = 5,852,172.07/2,550.09
6. Step 6: Final answer
   x = 2,294.89