You can't give people a price to buy multiple different areas as far as I can see. So, I think the only work around to this is if you create 4 member areas. 1, 2 and 3 and then for your Master Membership area, you would need to duplicate the pages/content you created for 1, 2 and 3 and put it all into area 4. 4 would be your Master Membership pricing. Does this make sense?
As the site owner, you would need to be on the highest level of Member Area subscription for this as you would have 4 membership areas.
Hope this helps.