Compute with immediate previous row value derived - response (2) by dnoeth

Your calculation is similar to 
1000 * 1.1 ** (row_number() over (order by Date)-1)

To get he start value you might try

min(Amount) over () * 1.1 ** (row_number() over (order by Date)-1)

or 

first_value(Amount) over (order by Date) * 1.1 ** (row_number() over (order by Date)-1)