Finding the Fourth Proportional to 1,436.46, 1,982.01 and 939.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.46 : 1,982.01 = 939.82 : x
2. Step 2: Convert to fraction form
   1,436.46/1,982.01 = 939.82/x
3. Step 3: Cross multiply
   1,436.46x = 1,982.01 × 939.82
4. Step 4: Simplify right side
   1,436.46x = 1,862,732.64
5. Step 5: Solve for x
   x = 1,862,732.64/1,436.46
6. Step 6: Final answer
   x = 1,296.75