Bootstrap styling table no lines between rows code example

Example: bootstrap break table row

I have this : 
|  1  |  2  |  3  |        4        |

I want this : 
|     1     |     2     |     3     |
|                 4                 |

- HTML :

<tr>
  <th scope="row">1</th>
  <td>2</td>
  <td>3</td>
  <td>4</td>
</tr>

- CSS : 

td:nth-child(4) {
  display: block;
  width: 100%;
}
th,
td:nth-child(2),
td:nth-child(3) {
  display: inline-block;
  width: 33%;
}