Finding the Fourth Proportional to 2,587.30, 3,570.47 and 1,408.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.30 : 3,570.47 = 1,408.37 : x
2. Step 2: Convert to fraction form
   2,587.30/3,570.47 = 1,408.37/x
3. Step 3: Cross multiply
   2,587.30x = 3,570.47 × 1,408.37
4. Step 4: Simplify right side
   2,587.30x = 5,028,546.35
5. Step 5: Solve for x
   x = 5,028,546.35/2,587.30
6. Step 6: Final answer
   x = 1,943.55