We just need to make sure to win tomorrow. And if we do win and Atlanta wins (against Washington who will most likely be resting Wall and Beal and maybe others), then we'll have 4th.
If we do lose, then we need to hope that Charlotte wins as well and passes us in the standings, because then we'd still be playing the Heat in the 3/6 matchup, just without HCA. We'd also have the benefit of being on the opposite side of the bracket as Cleveland, so it wouldn't be without its benefits.