Finding the Fourth Proportional to 1,436.97, 1,983.18 and 847.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.97 : 1,983.18 = 847.71 : x
2. Step 2: Convert to fraction form
   1,436.97/1,983.18 = 847.71/x
3. Step 3: Cross multiply
   1,436.97x = 1,983.18 × 847.71
4. Step 4: Simplify right side
   1,436.97x = 1,681,161.52
5. Step 5: Solve for x
   x = 1,681,161.52/1,436.97
6. Step 6: Final answer
   x = 1,169.94