Finding the Fourth Proportional to 2,587.09, 3,570.33 and 1,408.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.09 : 3,570.33 = 1,408.15 : x
2. Step 2: Convert to fraction form
   2,587.09/3,570.33 = 1,408.15/x
3. Step 3: Cross multiply
   2,587.09x = 3,570.33 × 1,408.15
4. Step 4: Simplify right side
   2,587.09x = 5,027,560.19
5. Step 5: Solve for x
   x = 5,027,560.19/2,587.09
6. Step 6: Final answer
   x = 1,943.33