Required Approval

Need a little help here with an O365 workflow build. We are using "Start a Task Process" in the hopes of setting up an approval that needs ALL THREE of the approves to OK the item before moving on to the next stage. Problem is the workflow is APPROVING regardless if someone rejected. I've played around with state machine a bit, but am still getting an approval regardless if one person rejects. I thought about setting up a query, but am not sure if there's an easier way to do it (and not 100% sure of how to set up the query). I'm learning Nintex for O365 as I go, so any help would be incredible!!!