Răspuns:
a) primul termen=292.375
al doilea termen=292.375+91.746= 384.121
b) 63.758+112.347= 176.105
91.865+112.347= 204.212
82.964+112.347= 195.311
c) x=262.387
y= 262.387+41.754
y= 304.141
z= 304.141+12.869
z= 317.010
x+y+z= 262.387+304.141+317.010=883.538