Finding the Fourth Proportional to 2,857.59, 4,285.29 and 1,008.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,857.59 : 4,285.29 = 1,008.09 : x
2. Step 2: Convert to fraction form
   2,857.59/4,285.29 = 1,008.09/x
3. Step 3: Cross multiply
   2,857.59x = 4,285.29 × 1,008.09
4. Step 4: Simplify right side
   2,857.59x = 4,319,958.00
5. Step 5: Solve for x
   x = 4,319,958.00/2,857.59
6. Step 6: Final answer
   x = 1,511.75