The problem is the 8 significant figures, not 4 decimal places - 0.3300 kip and 1467.9126 N both have 4 decimal places but one is much worse than the other.

Even if 330 lb was exact, all those digits in 1467.9126 N aren't even correct. It should be 1467.9131 N using standard gravity. It looks like brudgers used 1 lbf = 4.44822 N which is what Google says but is only rounded to 6 s.f. so can't be used to generate an 8 s.f result.