Finding the Fourth Proportional to 2,043.24, 3,066.06 and 810.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.24 : 3,066.06 = 810.78 : x
2. Step 2: Convert to fraction form
   2,043.24/3,066.06 = 810.78/x
3. Step 3: Cross multiply
   2,043.24x = 3,066.06 × 810.78
4. Step 4: Simplify right side
   2,043.24x = 2,485,900.13
5. Step 5: Solve for x
   x = 2,485,900.13/2,043.24
6. Step 6: Final answer
   x = 1,216.65