Finding the Fourth Proportional to 2,587.08, 3,570.16 and 1,408.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.08 : 3,570.16 = 1,408.15 : x
2. Step 2: Convert to fraction form
   2,587.08/3,570.16 = 1,408.15/x
3. Step 3: Cross multiply
   2,587.08x = 3,570.16 × 1,408.15
4. Step 4: Simplify right side
   2,587.08x = 5,027,320.80
5. Step 5: Solve for x
   x = 5,027,320.80/2,587.08
6. Step 6: Final answer
   x = 1,943.24