Finding the Fourth Proportional to 1,438.97, 1,983.83 and 940.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438.97 : 1,983.83 = 940.82 : x
2. Step 2: Convert to fraction form
   1,438.97/1,983.83 = 940.82/x
3. Step 3: Cross multiply
   1,438.97x = 1,983.83 × 940.82
4. Step 4: Simplify right side
   1,438.97x = 1,866,412.32
5. Step 5: Solve for x
   x = 1,866,412.32/1,438.97
6. Step 6: Final answer
   x = 1,297.05