Finding the Fourth Proportional to 2,663.46, 3,995.37 and 814.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663.46 : 3,995.37 = 814.68 : x
2. Step 2: Convert to fraction form
   2,663.46/3,995.37 = 814.68/x
3. Step 3: Cross multiply
   2,663.46x = 3,995.37 × 814.68
4. Step 4: Simplify right side
   2,663.46x = 3,254,948.03
5. Step 5: Solve for x
   x = 3,254,948.03/2,663.46
6. Step 6: Final answer
   x = 1,222.08