Finding the Fourth Proportional to 1,426.06, 1,967.91 and 805.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.06 : 1,967.91 = 805.06 : x
2. Step 2: Convert to fraction form
   1,426.06/1,967.91 = 805.06/x
3. Step 3: Cross multiply
   1,426.06x = 1,967.91 × 805.06
4. Step 4: Simplify right side
   1,426.06x = 1,584,285.62
5. Step 5: Solve for x
   x = 1,584,285.62/1,426.06
6. Step 6: Final answer
   x = 1,110.95