How to use "satisfactory" in a sentence

Is it possible, then, to make that intercourse more advantageous or more satisfactory after separation than before? Can aliens make treaties easier than friends can make laws? Can treaties be more faithfully enforced between aliens than laws can among friends? Suppose you go to war, you cannot fight always; and when, after much loss on both sides, and no gain on either, you cease fighting, the identical old questions as to terms of intercourse are again upon you.

The progress of our arms, upon which all else chiefly depends, is as well known to the public as to myself; and it is, I trust, reasonably satisfactory and encouraging to all

He smiled and asked Elliot if their dinner had been satisfactory, and Elliot said it had been fine, and the old man began to make change with slow, arthritic fingers.

And that annoyed me, because I could find no satisfactory explanation for that particular fear.

This explanation seemed satisfactory to me, but Miss Halcombe still looked concerned.