Finding the Fourth Proportional to 1,227.82, 1,839.84 and 984.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227.82 : 1,839.84 = 984.28 : x
2. Step 2: Convert to fraction form
   1,227.82/1,839.84 = 984.28/x
3. Step 3: Cross multiply
   1,227.82x = 1,839.84 × 984.28
4. Step 4: Simplify right side
   1,227.82x = 1,810,917.72
5. Step 5: Solve for x
   x = 1,810,917.72/1,227.82
6. Step 6: Final answer
   x = 1,474.90