Finding the Fourth Proportional to 2,587.39, 3,570.49 and 1,408.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.39 : 3,570.49 = 1,408.46 : x
2. Step 2: Convert to fraction form
   2,587.39/3,570.49 = 1,408.46/x
3. Step 3: Cross multiply
   2,587.39x = 3,570.49 × 1,408.46
4. Step 4: Simplify right side
   2,587.39x = 5,028,885.30
5. Step 5: Solve for x
   x = 5,028,885.30/2,587.39
6. Step 6: Final answer
   x = 1,943.62