When indenting a table using Firefox, (v14.0.1), or Chrome, (v20.0.1132.57), it is possible to indent a table in the editor view but whenever the page is saved or previewed the indent disappears and the table appears to be aligned to the left again, (see attached screenshot).

To workaround this issue you can use the User Macro defined in this comment and embed the table into nested 'indent' macros.