You can do this with a little CSS (cascading style sheets) script placed in your Survey Settings > Headers and Footers > HTML Head tag section. What this code does is change the text-direction of the specified styles and align the text to the right.
<style type="text/css">
.page_error,
.error_messages,
.header1,
.header2,
.question_body td,
.question_body,
.question_text,
.response_row,
.footer1 {
direction: rtl;
text-align: right;
}
</style>
Alternatively, you could add this shorter snippet that applies the alterations to everything in your survey.
<style type="text/css">
body {
direction: rtl;
text-align: right;
}
</style>