Finding the Fourth Proportional to 2,042.10, 3,062.88 and 809.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.10 : 3,062.88 = 809.82 : x
2. Step 2: Convert to fraction form
   2,042.10/3,062.88 = 809.82/x
3. Step 3: Cross multiply
   2,042.10x = 3,062.88 × 809.82
4. Step 4: Simplify right side
   2,042.10x = 2,480,381.48
5. Step 5: Solve for x
   x = 2,480,381.48/2,042.10
6. Step 6: Final answer
   x = 1,214.62