A : He was once a poor man but now he is a man of means .
他曾经很穷现在发达了。

B : How did he make a fortune ?
他怎么发财的？

A : He didn't make any effort . His aunt died and left him a fortune .
他没怎么努力，他姑姑死了，给他留下了一大笔财产。

a man/woman of means
means 除了有“方法，手段”的意思之外，还有“财富，自立，收入”的意思。所以，a man/woman of means在口语中表示“富人”， a man/woman of means则表示“经济困难的人”。

Only a man of means could afford such a big house.
只有富人才买得起这样的大宅第。

She wished to exhibit Jessica, who was gaining in maturity and beauty, and whom she hoped to marry to a man of means.
她想借此机会炫耀一下已经出落得美丽多姿的女儿杰西卡，她希望杰西卡能嫁一个富人。

He was a man of small means.
他是一个收入微薄的人。

make a fortune：发财

You' ll make a fortune out of it.
你会从中（或靠它）发一笔财。

People who want to make a fortune, never think of retiring to the remote and poor provinces.
想发财的人，决不会退居穷乡僻壤。

We must make a fortune by means of industry.
我们必须勤劳致富。

leave sb a fortune：留给某人遗产

And you know there is generally an uncle or a grandfather to leave a fortune to the second son.
你知道，叔叔伯伯或爷爷往往会给第二个孩子留下一笔财产。

She invents these stories. As for what she has told you about a rich Aunt who will leave her a fortune, it's an old wives' tale simply because she has no Aunt.
这些故事是她编出来的。至于她对你说有一位姑母留给她一笔财产，那是无稽之谈，因为她根本就没有姑母。