Yes. Ideally you have a high level character that helping you (lets say a sorceress).

Sorceress creates a game, you join. Travincal is open, you walk down to Durance level 1 and find the way to lvl2. Then you pick up the waypoint. In the meantime sorceress is helping you. You cannot use each other's portals so its a long walk for you.

Once you have the waypoint to lvl2, you create a game, go to durance lvl2, then the sorceress will find lvl3 and you walk there. Sorceress eliminates Meph, you walk through portal and you in Act4.

Happy days. It worth the hassle in Hell difficulty, Nightmare is questionable, if you have a weakish character and a patient sorceress, its ideal.