Towing Capacity - 1999 V6 4x4 Automatic Trans

Howdy all!

Hoping for some help or insight. Looking to buy a trailer to tow behind the RODEO (1999 V6 4x4 Automatic Trans), and I think i've seen I can tow up to 4500lbs. Is that correct? And, is this rig too close to that weight to make it an option????

http://wantfacts.com/consweb/trimland.php?TrimId=118812&ProdType=RV&MakeId=860&v=Recreational-Vehicle/2012/Heartland/Travel-Trailer/North-Trail-Focus-Edition-FX18

It's tongue weight is: 344 lbs
GVWR 4900
Dry Weight 3915

I know for is even to be possible, I'd have to haul it with no water, and very light load of personal goods... but even then, can it work, or is it too close to max hauling capacity of my rodeo?

Thanks in advance!!!