One molecule of the protein myoglobin contains one atom of iron. A myoglobin sample was found to contain 0.34% iron. The molecular weight of myoglobin is _________ $𝑔 𝑚𝑜𝑙^{−1}$ (rounded off to the nearest integer).
(Use $55.9 𝑔 𝑚𝑜𝑙^{−1}$ as atomic mass of iron)