Finding the Fourth Proportional to 2,587.38, 3,570.60 and 1,408.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.38 : 3,570.60 = 1,408.46 : x
2. Step 2: Convert to fraction form
   2,587.38/3,570.60 = 1,408.46/x
3. Step 3: Cross multiply
   2,587.38x = 3,570.60 × 1,408.46
4. Step 4: Simplify right side
   2,587.38x = 5,029,022.38
5. Step 5: Solve for x
   x = 5,029,022.38/2,587.38
6. Step 6: Final answer
   x = 1,943.68