Let the the nine number be x, x+2, x+4 etc..
Then, x+ x+2 +x+4 +x+6 +x+8 +x+10 +x+12 +x+14 +x+16 = 1998
9x + 72 = 1998
9x = 1926
x = 1926/9 = 214
The nine consecutive even integers that add to 1998 are:
214, 216, 218, 220, 222, 224, 226, 228, 230.
The smallest of these is 214