You may embed forms into any html pages and here are the steps:
1. After you have designed a form, go to its Distribute tab
2. Click on Embed button
3. Open the form upon prompt
4. in Embed Options dialog, click on Copy to copy the html snippets
Now you have the html code to add to an html page, then you can follow the seminar here to add the code to a Muse project: https://my.adobeconnect.com/p73yae8df5r/?launcher=false&fcsContent=true&pbMode=normal. Hope you find it helpful.