Gold prices approached $4,500 an ounce in Asian electronic trade, supported by a weaker US dollar ahead of Friday’s Nonfarm Payrolls report. The market for gold faces mixed influences, with high Treasury yields and a strong dollar limiting price increases. A weaker labor market report might lead to expectations of Fed easing, boosting gold, while a stronger payrolls report could strengthen the dollar and limit gold's appeal. MCX October gold futures rose over 1% to Rs.1,54,248 per 10 grams.