Finding the Fourth Proportional to 1,334.22, 1,841.31 and 885.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.22 : 1,841.31 = 885.32 : x
2. Step 2: Convert to fraction form
   1,334.22/1,841.31 = 885.32/x
3. Step 3: Cross multiply
   1,334.22x = 1,841.31 × 885.32
4. Step 4: Simplify right side
   1,334.22x = 1,630,148.57
5. Step 5: Solve for x
   x = 1,630,148.57/1,334.22
6. Step 6: Final answer
   x = 1,221.80