Aon plc (AON) is set to report its fourth-quarter 2023 results on Feb 2, before the opening bell. A strong Reinsurance Solutions performance is expected in the quarter under review, along with increasing costs.What Do the Estimates Say?The Zacks Consensus Estimate for fourth-quarter earnings per share of $4.07 suggests a 4.6% increase from the prior-year figure of $3.89. The consensus mark remained stable over the past week. The consensus estimate for fourth-quarter revenues of $3.4 billion indicates a 7.1% ...