Finding the Fourth Proportional to 1,422.54, 1,962.63 and 955.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.54 : 1,962.63 = 955.98 : x
2. Step 2: Convert to fraction form
   1,422.54/1,962.63 = 955.98/x
3. Step 3: Cross multiply
   1,422.54x = 1,962.63 × 955.98
4. Step 4: Simplify right side
   1,422.54x = 1,876,235.03
5. Step 5: Solve for x
   x = 1,876,235.03/1,422.54
6. Step 6: Final answer
   x = 1,318.93