Finding the Fourth Proportional to 2,457.46, 3,686.49 and 814.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,457.46 : 3,686.49 = 814.18 : x
2. Step 2: Convert to fraction form
   2,457.46/3,686.49 = 814.18/x
3. Step 3: Cross multiply
   2,457.46x = 3,686.49 × 814.18
4. Step 4: Simplify right side
   2,457.46x = 3,001,466.43
5. Step 5: Solve for x
   x = 3,001,466.43/2,457.46
6. Step 6: Final answer
   x = 1,221.37