Finding the Fourth Proportional to 1,436.40, 1,982.49 and 846.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.40 : 1,982.49 = 846.90 : x
2. Step 2: Convert to fraction form
   1,436.40/1,982.49 = 846.90/x
3. Step 3: Cross multiply
   1,436.40x = 1,982.49 × 846.90
4. Step 4: Simplify right side
   1,436.40x = 1,678,970.78
5. Step 5: Solve for x
   x = 1,678,970.78/1,436.40
6. Step 6: Final answer
   x = 1,168.87