How do i propogate this?

Hi all,

I have a philodendron I got a few years ago. I think it's a Prince of Orange but could be wrong. It was doing ok (not great) for a while. Then we had an ice storm in my area, it knocked out the power for over a week and the temperature indoors dropped to around 40 degrees for a full week. A lot of my plant suffered but mostly bounced back. This one, did not.

I'm looking for advice on how to handle this. Should I give up and try to propogate (if that's even possible?) Change the soil and give it some fertilizer? Seeking help from the community here.

Thanks so much in advance for any thoughts!