Peal, core, and dice the apple and pear.  Wash the prunes and raisins in hot water.  Remove the prune pits; cut the prunes into pieces.  Melt the shortening in a large skillet.  Add the cabbage; cook with the cover on for 10 minutes.  Add the fruit and salt.  Mix through once; cover and cook for 4 to 5 minutes, or until the cabbage is tender.  Add a little water if the cabbage becomes dry.  Serves 4.