Will very likely work without having to wget it first:
rpm -ihv http://<ProGetServer>/endpoints/RPMTest/content/apacheds-2.0.0.AM25-x86_64.rpm
On Centos/RHEL/Fedora the easiest way to setup a rpm repo is to just place all rpm files on a file server and run createrepo .
from the top level directory to create all the meta.
And update your /etc/yum.repo.d/fedora.repo
file to point at your file server.
It would be useful to see Proget support rpm version management as well as pacman version management.
I could test something... Let me know.