I have an image that is 768x1200. I want to make the width 1024 what would be the height of the new size if I keep the same aspect ratio?

To maintain the same aspect ratio when increasing the width of the image from 768 to 1024 pixels, you can use the following proportion:

Original Width / Original Height = New Width / New Height

In your case:

768 / 1200 = 1024 / New Height

Now, solve for the New Height:

New Height = (1024 * 1200) / 768

New Height ≈ 1600 pixels

So, if you increase the width to 1024 pixels while maintaining the same aspect ratio, the new height would be approximately 1600 pixels.