1) Estimate the product by rounding each number to its greatest place value. \( 2,342.7 \times 784.3= \)

1. Round \(2,342.7\) to its greatest place value. The greatest place value is the thousands place, so we round to the nearest thousand. Since \(2,342.7\) is closer to \(2,000\) than to \(3,000\), we have \[ 2,342.7 \approx 2,000. \] 2. Round \(784.3\) to its greatest place value. The greatest place value here is the hundreds place, so we round to the nearest hundred. Since \(784.3\) is closer to \(800\) than to \(700\), we have \[ 784.3 \approx 800. \] 3. Multiply the rounded numbers: \[ 2,000 \times 800 = 1,600,000. \] Thus, the estimated product is \[ \boxed{1,600,000}. \]