What is the share of each heir from the inheritance between one full brother and two full sisters, knowing that three sisters and one brother of the deceased have passed away?

If the deceased has no heirs other than those mentioned, then his estate is distributed among his full siblings who passed away before him, by 'asabah (agnatic kinship), with the male receiving twice the share of the female, in accordance with the Almighty's saying: {And if there are brothers and sisters, male and female, then the male will have the share of two females} (An-Nisa:176). There is nothing for anyone who passed away before the deceased from among the heirs, due to the condition of the heir being alive after the death of the deceased. The estate is divided into four shares: two shares for the male, and one share for each female.