Finding the Fourth Proportional to 2,587.43, 3,570.55 and 1,408.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.43 : 3,570.55 = 1,408.50 : x
2. Step 2: Convert to fraction form
   2,587.43/3,570.55 = 1,408.50/x
3. Step 3: Cross multiply
   2,587.43x = 3,570.55 × 1,408.50
4. Step 4: Simplify right side
   2,587.43x = 5,029,119.68
5. Step 5: Solve for x
   x = 5,029,119.68/2,587.43
6. Step 6: Final answer
   x = 1,943.67