Finding the Fourth Proportional to 2,549.76, 3,515.84 and 1,664.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.76 : 3,515.84 = 1,664.04 : x
2. Step 2: Convert to fraction form
   2,549.76/3,515.84 = 1,664.04/x
3. Step 3: Cross multiply
   2,549.76x = 3,515.84 × 1,664.04
4. Step 4: Simplify right side
   2,549.76x = 5,850,498.39
5. Step 5: Solve for x
   x = 5,850,498.39/2,549.76
6. Step 6: Final answer
   x = 2,294.53