Converting 3-way switch wires to 4-way switch wires

Idk that it can be done but if so, I’d like to know how it can be done.I have a switch wired 3-ways light that I need to be 4-way wired. I bought a smart switch that requires a 4-way. Basically I have 2 load wires on the smart switch to 2 load wires in the wall but I only have one load wire (black) coming from the wall.Picture of the required wiring. via /r/DIY

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