Example with a context:
Europe's economy first felt the effect of sanctions as tourist towns in Greece, Czech Republic, and elsewhere remained dormant this summer. Russian tourists and their capital stayed home. Russian investors in Europe also turned tail. But the end is not near. This trouble could soon spill over on to the European Central Bank, thanks to an estimated at $1.2 trillion in consumer loans tied to the Russian economy. If bankruptcies begin to rise, we can only imagine how non-performing loans underwritten by European banks will skyrocket.
I don't get that one grammatically. Is the word estimated a noun here?