Finding the Fourth Proportional to 2,587.02, 3,546.85 and 2,540.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.02 : 3,546.85 = 2,540.30 : x
2. Step 2: Convert to fraction form
   2,587.02/3,546.85 = 2,540.30/x
3. Step 3: Cross multiply
   2,587.02x = 3,546.85 × 2,540.30
4. Step 4: Simplify right side
   2,587.02x = 9,010,050.35
5. Step 5: Solve for x
   x = 9,010,050.35/2,587.02
6. Step 6: Final answer
   x = 3,482.79