Finding the Fourth Proportional to 1,635.27, 2,454.02 and 814.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.27 : 2,454.02 = 814.12 : x
2. Step 2: Convert to fraction form
   1,635.27/2,454.02 = 814.12/x
3. Step 3: Cross multiply
   1,635.27x = 2,454.02 × 814.12
4. Step 4: Simplify right side
   1,635.27x = 1,997,862.69
5. Step 5: Solve for x
   x = 1,997,862.69/1,635.27
6. Step 6: Final answer
   x = 1,221.73