Finding the Fourth Proportional to 2,502.27, 3,750.83 and 858.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,502.27 : 3,750.83 = 858.38 : x
2. Step 2: Convert to fraction form
   2,502.27/3,750.83 = 858.38/x
3. Step 3: Cross multiply
   2,502.27x = 3,750.83 × 858.38
4. Step 4: Simplify right side
   2,502.27x = 3,219,614.41
5. Step 5: Solve for x
   x = 3,219,614.41/2,502.27
6. Step 6: Final answer
   x = 1,286.68