How are inherited apartments divided between one male and three females, knowing that the ground floor apartment and shops are divided for the male as per the share of two females, and there are five other apartments, one of which is occupied by the son, three are occupied by the daughters, and one is vacant?

If the father passes away and leaves behind only one son and three daughters, the inheritance is divided among them with the male receiving the share of two females. That is, the inheritance is divided into five shares: the son receives two shares, and each daughter receives one share. If the son wishes to donate a portion of his share, he is permitted to do so.