Finding the Fourth Proportional to 2,587.60, 3,570.97 and 1,408.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.60 : 3,570.97 = 1,408.71 : x
2. Step 2: Convert to fraction form
   2,587.60/3,570.97 = 1,408.71/x
3. Step 3: Cross multiply
   2,587.60x = 3,570.97 × 1,408.71
4. Step 4: Simplify right side
   2,587.60x = 5,030,461.15
5. Step 5: Solve for x
   x = 5,030,461.15/2,587.60
6. Step 6: Final answer
   x = 1,944.06