I'm old fashioned, and I think it's HIS job to propose. Doesn't meant you can't keep making the hints, but if you have to lower yourself and ask yourself, well then.... you know.....
My two girls have never regretted it for a minute and after they did the initial proposal (complete with rings for their men folk) the boys went out, bought the girls their rings and proposed to them! So they were over the moon too!
I say go for it! We live in a modern world and at least that way you can choose the location and circumstances.