The ornamental design for a rakeprong, as shown and described.
FIG. 1 is a perspective view of a rake prong showing my new design, the threaded portion of FIGS. 1-3, 6, and 7 being shown broken away to indicate indeterminate length;
FIG. 2 is a right side elevation view thereof the left side view being a mirror image thereof;
FIG. 3 is a front elevation view thereof the rear view being a mirror image thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a perspective view of another embodiment of a rake prong showing my new design;
FIG. 7 is a right side elevation view thereof the left side view being a mirror image thereof; and,