The three consecutive multiples of 2 can be written as:

2(x - 1), 2x and 2(x + 1), where x is a number

2(x - 1) + 2x + 2(x + 1) = 297

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click here to see the equation solved for x

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x = 49.5

2*49.5 = 99

2*(49.5 - 1) = 97

2*(49.5 + 1) = 101

Indeed: 99 + 97 + 101 = 297

Since it is not given weather the numbers are integer multiples of 2 or not, we can say the solution is: 97, 99 and 101.