Finding the Fourth Proportional to 2,814.10, 4,217.25 and 1,057.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,814.10 : 4,217.25 = 1,057.33 : x
2. Step 2: Convert to fraction form
   2,814.10/4,217.25 = 1,057.33/x
3. Step 3: Cross multiply
   2,814.10x = 4,217.25 × 1,057.33
4. Step 4: Simplify right side
   2,814.10x = 4,459,034.16
5. Step 5: Solve for x
   x = 4,459,034.16/2,814.10
6. Step 6: Final answer
   x = 1,584.54