Finding the Fourth Proportional to 2,858.29, 4,287.17 and 1,009.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,858.29 : 4,287.17 = 1,009.32 : x
2. Step 2: Convert to fraction form
   2,858.29/4,287.17 = 1,009.32/x
3. Step 3: Cross multiply
   2,858.29x = 4,287.17 × 1,009.32
4. Step 4: Simplify right side
   2,858.29x = 4,327,099.94
5. Step 5: Solve for x
   x = 4,327,099.94/2,858.29
6. Step 6: Final answer
   x = 1,513.88