Finding the Fourth Proportional to 2,040.32, 3,061.49 and 808.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.32 : 3,061.49 = 808.61 : x
2. Step 2: Convert to fraction form
   2,040.32/3,061.49 = 808.61/x
3. Step 3: Cross multiply
   2,040.32x = 3,061.49 × 808.61
4. Step 4: Simplify right side
   2,040.32x = 2,475,532.08
5. Step 5: Solve for x
   x = 2,475,532.08/2,040.32
6. Step 6: Final answer
   x = 1,213.31