Final answer:
The final draft of the Constitution needed to be approved through state conventions where representatives would vote on its approval.
Step-by-step explanation:
The final draft of the Constitution needed to be approved through a process involving the states. Each state would hold a convention where representatives chosen by the people would vote on whether or not to approve the Constitution. If the majority of states ratified, or approved, the Constitution, then it would become law.
Learn more about Approval process of the final draft of the Constitution