Finding the Fourth Proportional to 1,435.47, 1,981.02 and 805.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.47 : 1,981.02 = 805.97 : x
2. Step 2: Convert to fraction form
   1,435.47/1,981.02 = 805.97/x
3. Step 3: Cross multiply
   1,435.47x = 1,981.02 × 805.97
4. Step 4: Simplify right side
   1,435.47x = 1,596,632.78
5. Step 5: Solve for x
   x = 1,596,632.78/1,435.47
6. Step 6: Final answer
   x = 1,112.27