Finding the Fourth Proportional to 2,042.33, 3,061.69 and 810.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.33 : 3,061.69 = 810.60 : x
2. Step 2: Convert to fraction form
   2,042.33/3,061.69 = 810.60/x
3. Step 3: Cross multiply
   2,042.33x = 3,061.69 × 810.60
4. Step 4: Simplify right side
   2,042.33x = 2,481,805.91
5. Step 5: Solve for x
   x = 2,481,805.91/2,042.33
6. Step 6: Final answer
   x = 1,215.19