I'm not sure where to begin with finding the derivative of this function:

f(x) = x * e^x * cscx

I understand the product rule and how it applies to problems that have two functions, but how would one incorporate a third function?

I've using the product rule on the first two, x & e^x, and then used that derivative and putting it in as one of the two functions in the product rule, along with cscx, but this seems like a sloppy/invalid method.

Thank you!