What is the total area in square kilometers of all enclaves listed together?
To find the total area of all enclaves listed together, we need to sum up the areas mentioned in the context. The areas are given as follows:

394 (1st mention)
6 (2nd mention)
1643.44 (3rd mention)
14.27 (4th mention)
21.21 (5th mention)
31.58 (6th mention)
45.63 (7th mention)
39.99 (8th mention)
0.9 (9th mention)
8.92 (10th mention)
8.81 (11th mention)
12.31 (12th mention)
17.85 (13th mention)

Adding up these areas:

394 + 6 + 1643.44 + 14.27 + 21.21 + 31.58 + 45.63 + 39.99 + 0.9 + 8.92 + 8.81 + 12.31 + 17.85 = 2470.04 square kilometers

So, the total area of all enclaves listed together is 2470.04 square kilometers.