Finding the Fourth Proportional to 1,046.22, 1,439.52 and 959.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.22 : 1,439.52 = 959.82 : x
2. Step 2: Convert to fraction form
   1,046.22/1,439.52 = 959.82/x
3. Step 3: Cross multiply
   1,046.22x = 1,439.52 × 959.82
4. Step 4: Simplify right side
   1,046.22x = 1,381,680.09
5. Step 5: Solve for x
   x = 1,381,680.09/1,046.22
6. Step 6: Final answer
   x = 1,320.64