Finding the Fourth Proportional to 2,587.48, 3,570.76 and 1,408.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.48 : 3,570.76 = 1,408.55 : x
2. Step 2: Convert to fraction form
   2,587.48/3,570.76 = 1,408.55/x
3. Step 3: Cross multiply
   2,587.48x = 3,570.76 × 1,408.55
4. Step 4: Simplify right side
   2,587.48x = 5,029,594.00
5. Step 5: Solve for x
   x = 5,029,594.00/2,587.48
6. Step 6: Final answer
   x = 1,943.82