4:27
52.9
4:27
52.9
51.5 400
4:30 mile
:54 400m
3:57 1500m.
Daniel's book has a good chart of "time associations" between 400,800 and mile times. He gives 49.0/3:58, 55.0/4:27.7 and 61.0/4:57, which seems pretty accurate for your typical "true" miler- for whom the mile is their best overall distance.
400 m 55
800 m 2:05
1500 m 4:18