how would i write this on the compiler where im getting the answer with a remainder (decimal or quotient)? i cant seem to get the math portion right, my answers either comes out to 0 or 1. where am i going wrong on my program?

4. Write a C++ program to read 4 resistors' values which are connected in parallel. Compute total resistor and display it. RTotal=((R2R3R4)+(R1R3R4)+(R1R2R3))/R1R2R3R4 Enter the value of the second resistor, R2 3 Enter the value of the third resistor, R3 3 Enter the value of the fourth resistor, R4 3 Your total resistance, RT, is 1 GOB ...Program finished with exit code 0 Press ENTRER to exit console