Finding the Fourth Proportional to 2,587.73, 3,571.04 and 1,408.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.73 : 3,571.04 = 1,408.79 : x
2. Step 2: Convert to fraction form
   2,587.73/3,571.04 = 1,408.79/x
3. Step 3: Cross multiply
   2,587.73x = 3,571.04 × 1,408.79
4. Step 4: Simplify right side
   2,587.73x = 5,030,820.54
5. Step 5: Solve for x
   x = 5,030,820.54/2,587.73
6. Step 6: Final answer
   x = 1,944.11