Finding the Fourth Proportional to 2,458.27, 3,687.68 and 814.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458.27 : 3,687.68 = 814.69 : x
2. Step 2: Convert to fraction form
   2,458.27/3,687.68 = 814.69/x
3. Step 3: Cross multiply
   2,458.27x = 3,687.68 × 814.69
4. Step 4: Simplify right side
   2,458.27x = 3,004,316.02
5. Step 5: Solve for x
   x = 3,004,316.02/2,458.27
6. Step 6: Final answer
   x = 1,222.13