Finding the Fourth Proportional to 1,403.27, 1,936.46 and 805.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.27 : 1,936.46 = 805.36 : x
2. Step 2: Convert to fraction form
   1,403.27/1,936.46 = 805.36/x
3. Step 3: Cross multiply
   1,403.27x = 1,936.46 × 805.36
4. Step 4: Simplify right side
   1,403.27x = 1,559,543.70
5. Step 5: Solve for x
   x = 1,559,543.70/1,403.27
6. Step 6: Final answer
   x = 1,111.36