There is no way to arrange the order of the prompts for a Workfront Report.

Adding prompts to a report only allow new prompts to be added at the bottom of the prompt list and there is no way to rearrange the prompts unless remove them and add them again. With time using a report, you realize it would be handy to have some prompts at the top of the prompt list.

It would be nice while you are in edit mode, if you can slide the prompts to the desired location in the prompt list.