I want to run a JavaScript code synchronously in react native

I’m working in a project where I retrieve data from local database using SQLite then I process the data and finally I use the processed data in a calculation method.

The problem is that the code is running asynchronously so when I call the calculation method in the first time it works before the retrieve and processing methods it only works in the second or third run.

I have 4 retrieve methods :

    retrieve1();
    retrieve2();
    retrieve3();
    retrieve4();

then I want to process the retrieved data so I have the following methods:

processRetrieve1();
processRetrieve2();
processRetrieve3();
processRetrieve4();

finally I want to call the calculation method:

Calculate();

How can I run this code in the following order?
Retrieve methods -> Processing methods -> Calculating method