Finding the Fourth Proportional to 2,587.15, 3,570.27 and 1,408.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.15 : 3,570.27 = 1,408.22 : x
2. Step 2: Convert to fraction form
   2,587.15/3,570.27 = 1,408.22/x
3. Step 3: Cross multiply
   2,587.15x = 3,570.27 × 1,408.22
4. Step 4: Simplify right side
   2,587.15x = 5,027,725.62
5. Step 5: Solve for x
   x = 5,027,725.62/2,587.15
6. Step 6: Final answer
   x = 1,943.35