What factors explain why Adolf Hitler was appointed Chancellor on 30th January 1933?

There are a number of factors which explain why Hitler became chancellor in January 1933. However, any of the factors, on their own, would not have individually resulted in his appointment. They are all linked in a web of causation and if any of the factors were missing, Hitler may well have not been appointed chancellor. However, through saying this I feel that one of the most important factors as to why Hitler was appointed in 1933, …

…businessmen could not sell their goods. It also led to millions supporting parties that worked to end the Weimar republic. Many businessmen then looked to Hitler to defend them from the communists. The deal with Von Papen led to Hitler gaining office as chancellor and eventually becoming a dictator. The Nazi's propaganda then built on the anti-Communist and anti-Semitic views that already existed in Germany. This in turn further increased the popularity of the Nazis.