Finding the Fourth Proportional to 2,287.42, 3,429.07 and 805.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.42 : 3,429.07 = 805.59 : x
2. Step 2: Convert to fraction form
   2,287.42/3,429.07 = 805.59/x
3. Step 3: Cross multiply
   2,287.42x = 3,429.07 × 805.59
4. Step 4: Simplify right side
   2,287.42x = 2,762,422.49
5. Step 5: Solve for x
   x = 2,762,422.49/2,287.42
6. Step 6: Final answer
   x = 1,207.66