Finding the Fourth Proportional to 3,146.82, 4,721.25 and 955.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,146.82 : 4,721.25 = 955.55 : x
2. Step 2: Convert to fraction form
   3,146.82/4,721.25 = 955.55/x
3. Step 3: Cross multiply
   3,146.82x = 4,721.25 × 955.55
4. Step 4: Simplify right side
   3,146.82x = 4,511,366.83
5. Step 5: Solve for x
   x = 4,511,366.83/3,146.82
6. Step 6: Final answer
   x = 1,433.63