Finding the Fourth Proportional to 2,587.98, 3,571.78 and 2,429.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.98 : 3,571.78 = 2,429.62 : x
2. Step 2: Convert to fraction form
   2,587.98/3,571.78 = 2,429.62/x
3. Step 3: Cross multiply
   2,587.98x = 3,571.78 × 2,429.62
4. Step 4: Simplify right side
   2,587.98x = 8,678,068.12
5. Step 5: Solve for x
   x = 8,678,068.12/2,587.98
6. Step 6: Final answer
   x = 3,353.22