Finding the Fourth Proportional to 2,188.69, 3,019.43 and 1,480.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.69 : 3,019.43 = 1,480.28 : x
2. Step 2: Convert to fraction form
   2,188.69/3,019.43 = 1,480.28/x
3. Step 3: Cross multiply
   2,188.69x = 3,019.43 × 1,480.28
4. Step 4: Simplify right side
   2,188.69x = 4,469,601.84
5. Step 5: Solve for x
   x = 4,469,601.84/2,188.69
6. Step 6: Final answer
   x = 2,042.14