I need to add more approvers in workflow form

I have created a form and I have added one approver. I like to have three or four approver on each form, so when the principal has approved it, it will go to the bus barn,  the food service etc. etc.

I am not sure how to add more approver after the first one, can anyone help?

As an option, you may add more approval fields to your form.

Then, you will be able to use them in email conditions. For example, if 'Principal approved' is equal to 'Yes', then send a specific email notification.

Related guides:

A General Approach on Building an Approval Process Workflow

How to Send Email Based on User's Answer

How to Let Users Update Their Form Submissions at a Later Date

Conditional Logic for Online Forms