Finding the Fourth Proportional to 2,587.92, 3,571.32 and 1,408.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.92 : 3,571.32 = 1,408.98 : x
2. Step 2: Convert to fraction form
   2,587.92/3,571.32 = 1,408.98/x
3. Step 3: Cross multiply
   2,587.92x = 3,571.32 × 1,408.98
4. Step 4: Simplify right side
   2,587.92x = 5,031,918.45
5. Step 5: Solve for x
   x = 5,031,918.45/2,587.92
6. Step 6: Final answer
   x = 1,944.39