Mathematical Operators in String

[AgileAVS]

Hey this is a very simple question, how do I use mathematical numbers in text such as 1,000.00 and 9,000.00.
For example:

x=float(1,000.00)
y=float(19,000.00)
print(x*y)

Error:
Traceback (most recent call last):
  File "C:\Users\aabha\OneDrive\Desktop\py4e\rough.py", line 1, in <module>
    x=float(1,000.00)
TypeError: float expected at most 1 arguments, got 2