Finding the Fourth Proportional to 2,549.32, 3,515.88 and 1,664.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.32 : 3,515.88 = 1,664.80 : x
2. Step 2: Convert to fraction form
   2,549.32/3,515.88 = 1,664.80/x
3. Step 3: Cross multiply
   2,549.32x = 3,515.88 × 1,664.80
4. Step 4: Simplify right side
   2,549.32x = 5,853,237.02
5. Step 5: Solve for x
   x = 5,853,237.02/2,549.32
6. Step 6: Final answer
   x = 2,296.00