What's the isolation of the mountain peak with prominence of 1340.549 = 4,397feet 1,340m?
CREATE TABLE "the_18_washington_mountain_peaks_with_27" (
  "rank" real,
  "mountain_peak" text,
  "mountain_range" text,
  "elevation" text,
  "prominence" text,
  "isolation" text
);
SELECT "isolation" FROM "the_18_washington_mountain_peaks_with_27" WHERE "prominence"='1340.549 = 4,397feet 1,340m';