I'm new to VBA and looking for help with creating a macro.

This is what I am trying to do:
1 - Loop through values 1 to 1289 in cell $A$4 on Sheet1. Each of these values corresponds with a row of data and calculations are performed in my spreadsheet.
2 - For each value above (1-1289), copy the output which is in row 2 of Sheet2.
3 - Paste the output for each value from step 2 into Sheet3 starting with row 2 and ending with row 1290.

Thank you for any help anyone can provide.