Finding the Fourth Proportional to 2,587.85, 3,571.25 and 1,408.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.85 : 3,571.25 = 1,408.89 : x
2. Step 2: Convert to fraction form
   2,587.85/3,571.25 = 1,408.89/x
3. Step 3: Cross multiply
   2,587.85x = 3,571.25 × 1,408.89
4. Step 4: Simplify right side
   2,587.85x = 5,031,491.37
5. Step 5: Solve for x
   x = 5,031,491.37/2,587.85
6. Step 6: Final answer
   x = 1,944.28