I've seen many post regarding this, but I have yet to find what I
need.  I have a string that can contain numbers as well as text
(legacy data was poorly designed and I have to deal with it).  In the
instance that the string is a number, or decimal i would like to
format it as a currency otherwise I'd like to leave it as is.

So, the string could be (all of these are possible):
Type 1
Type A
123
123.33
123.00000003
Type 1 < 2

and I would like to format the ones that are numbers, so I'd like to
format it as such:
Type 1
Type A
$ 123.00
$ 123.33
$ 123.00
Type 1 < 2

Does anybody have any good tricks or something?  I guess I could do a
series of casts,  using the try catch option?   Any help would be
greatly appreciated.

Thank you.