To correct \(241.34 \times (3 \times 10^{-3})^2\) to 4 significant figures, follow these steps:

1. Calculate \(3 \times 10^{-3}\):

\(3 \times 10^{-3} = 0.003\)

2. Square \(0.003\):

\(0.003^2 = 0.000009\)

3. Multiply \(241.34\) by \(0.000009\):

\(241.34 \times 0.000009 = 0.00217206\)

4. Round the result to 4 significant figures:

\(0.00217206\) rounds to \(0.002172\)

So, \(241.34 \times (3 \times 10^{-3})^2\) corrected to 4 significant figures is approximately 0.002172