Finding the Fourth Proportional to 1,436.88, 1,982.82 and 847.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.88 : 1,982.82 = 847.74 : x
2. Step 2: Convert to fraction form
   1,436.88/1,982.82 = 847.74/x
3. Step 3: Cross multiply
   1,436.88x = 1,982.82 × 847.74
4. Step 4: Simplify right side
   1,436.88x = 1,680,915.83
5. Step 5: Solve for x
   x = 1,680,915.83/1,436.88
6. Step 6: Final answer
   x = 1,169.84