Finding the Fourth Proportional to 2,858.34, 4,284.84 and 1,008.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,858.34 : 4,284.84 = 1,008.42 : x
2. Step 2: Convert to fraction form
   2,858.34/4,284.84 = 1,008.42/x
3. Step 3: Cross multiply
   2,858.34x = 4,284.84 × 1,008.42
4. Step 4: Simplify right side
   2,858.34x = 4,320,918.35
5. Step 5: Solve for x
   x = 4,320,918.35/2,858.34
6. Step 6: Final answer
   x = 1,511.69