Finding the Fourth Proportional to 2,587.50, 3,570.63 and 1,408.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.50 : 3,570.63 = 1,408.54 : x
2. Step 2: Convert to fraction form
   2,587.50/3,570.63 = 1,408.54/x
3. Step 3: Cross multiply
   2,587.50x = 3,570.63 × 1,408.54
4. Step 4: Simplify right side
   2,587.50x = 5,029,375.18
5. Step 5: Solve for x
   x = 5,029,375.18/2,587.50
6. Step 6: Final answer
   x = 1,943.72