To solve the equation \( 4x - 189 = 578 \), we can start by isolating \( x \).
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Add 189 to both sides of the equation: \[ 4x = 578 + 189 \] \[ 4x = 767 \]
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Now, divide both sides by 4 to solve for \( x \): \[ x = \frac{767}{4} \] \[ x = 191.75 \]
Since there are no options provided that exactly match \( 191.75 \), the closest estimate would be:
200
So, the best estimate for \( x \) based on the given options is 200.