714.763
713.736
713.763
713.673
Start on the left. They all start with 7, so there's nothing to do.
Next digit. They all start with 71, so there's nothing to do.
Next digit. The 713's all go before the 714.
713.736
713.763
713.673
714.763
Next digit. The 713.6 happens before the 713.7's.
713.673
713.736
713.763
714.763
Next digit. The 713.73 happens before the 713.76. Note: It's already in that position. All numbers sorted.
Answer:
713.673
713.736
713.763
714.763