On 14 September your 1810 ZT DR position is LAT 27°12.0' S, LONG 71°10.0' E. You are on course 060°T at a speed of 15.0 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 1822 running fix.

Correct Answer: Option C — LAT 27°11.0'S, LONG 71°14.5'E

Advancing the lines of position from the 1810 DR to the 1822 time of the running fix requires applying the course and distance run (3.0 miles at 060°T). Intersecting these advanced lines with the celestial observations yields the precise fix at LAT 27°11.0'S, LONG 71°14.5'E.