Finding the Fourth Proportional to 1,422.52, 1,961.94 and 980.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.52 : 1,961.94 = 980.32 : x
2. Step 2: Convert to fraction form
   1,422.52/1,961.94 = 980.32/x
3. Step 3: Cross multiply
   1,422.52x = 1,961.94 × 980.32
4. Step 4: Simplify right side
   1,422.52x = 1,923,329.02
5. Step 5: Solve for x
   x = 1,923,329.02/1,422.52
6. Step 6: Final answer
   x = 1,352.06