Finding the Fourth Proportional to 1,436.70, 1,982.56 and 847.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.70 : 1,982.56 = 847.42 : x
2. Step 2: Convert to fraction form
   1,436.70/1,982.56 = 847.42/x
3. Step 3: Cross multiply
   1,436.70x = 1,982.56 × 847.42
4. Step 4: Simplify right side
   1,436.70x = 1,680,061.00
5. Step 5: Solve for x
   x = 1,680,061.00/1,436.70
6. Step 6: Final answer
   x = 1,169.39