XRP price is showing signs of a potential breakout to $4, according to a crypto analyst.XRP has been trading within a descending trendline, and a decisive move above this resistance could ignite a rally to a new all-time high.A breakout and close above the trendline with higher-than-average volume signals bullish momentum for XRP.On the other hand, a rejection at the trendline could trigger a consolidation and decline for XRP.