Finding the Fourth Proportional to 1,426.42, 1,968.37 and 805.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.42 : 1,968.37 = 805.42 : x
2. Step 2: Convert to fraction form
   1,426.42/1,968.37 = 805.42/x
3. Step 3: Cross multiply
   1,426.42x = 1,968.37 × 805.42
4. Step 4: Simplify right side
   1,426.42x = 1,585,364.57
5. Step 5: Solve for x
   x = 1,585,364.57/1,426.42
6. Step 6: Final answer
   x = 1,111.43