Put the events leading to Macbeth's tragic end into the order in which they occur in Act V of Shakespeare's play The Tragedy of Macbeth.

1. Lady Macbeth's guilt causes her to sleepwalk.
2. Malcolm's men disguise themselves with branches.
3. Birnam Wood advances on Dunsinane.
4. Macbeth realizes the prophecies are misleading.
5. Macbeth prepares for battle with Macduff.
6. Macbeth is killed.
7. Malcolm becomes king of Scotland.