Finding the Fourth Proportional to 1,085.82, 1,630.80 and 675.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.82 : 1,630.80 = 675.72 : x
2. Step 2: Convert to fraction form
   1,085.82/1,630.80 = 675.72/x
3. Step 3: Cross multiply
   1,085.82x = 1,630.80 × 675.72
4. Step 4: Simplify right side
   1,085.82x = 1,101,964.18
5. Step 5: Solve for x
   x = 1,101,964.18/1,085.82
6. Step 6: Final answer
   x = 1,014.87