How do you fulfill 4 meals on the Sabbath if there are only Friday night, morning, and toward its end?

The question isn’t clear. There is an opinion in the Talmud (Rabbi Chidka) that one needs 4 meals on the Sabbath, but we do not rule that way. Some refer to the meal on Saturday night after the Sabbath (which is not obligatory like the previous ones) as the fourth meal, but that is indeed a misleading name, because the meal is in fact not on the Sabbath.