Finding the Fourth Proportional to 1,469.82, 2,028.02 and 997.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,469.82 : 2,028.02 = 997.78 : x
2. Step 2: Convert to fraction form
   1,469.82/2,028.02 = 997.78/x
3. Step 3: Cross multiply
   1,469.82x = 2,028.02 × 997.78
4. Step 4: Simplify right side
   1,469.82x = 2,023,517.80
5. Step 5: Solve for x
   x = 2,023,517.80/1,469.82
6. Step 6: Final answer
   x = 1,376.71