all the steps

Voting. Unhappy with the performance of the board, a minority group of shareholders of Alpha Inc., who owns 4,200,000 voting shares, wants to elect the minimum majority of directors in the upcoming shareholders meeting where 7 directors are to be elected. Alpha has 9,240,000 voting shares outstanding and uses cumulative voting. How many additional shares must the minority group have to ensure the election of the minimum majority of directors? wound your answer to the closest integer