A Power BI consultant assists with advanced data analytics by leveraging Power BI’s data modeling, DAX (Data Analysis Expressions), and machine learning integrations. They build complex calculations and custom measures to enable deeper insights into the data, such as trend analysis, forecasting, and scenario planning. Consultants also use AI-driven tools within Power BI to identify patterns and anomalies in the data. This level of analysis allows businesses to predict future outcomes, assess risks, and optimize strategies based on data-driven insights, helping them stay competitive and make proactive decisions.