Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Rank | Lane | Name | Nationality | Time |
| --- | --- | --- | --- | --- |
| 1.0 | 4.0 | Jean Basson | South Africa | 1:46.13 |
| 2.0 | 3.0 | Danila Izotov | Russia | 1:47.24 |
| 3.0 | 2.0 | Ross Davenport | Great Britain | 1:47.35 |
| 4.0 | 6.0 | Emiliano Brembilla | Italy | 1:47.70 |
| 5.0 | 7.0 | Nicholas Sprenger | Australia | 1:47.80 |
| 6.0 | 1.0 | Dominik Koll | Austria | 1:47.87 |
| 7.0 | 5.0 | Colin Russell | Canada | 1:48.13 |
| 8.0 | 8.0 | Rodrigo Castro | Brazil | 1:48.71 |
Question:
Who placed highest with a time of 1:47.70?
Answer:
4.0