Finding the Fourth Proportional to 1,422.34, 1,960.92 and 1,276.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.34 : 1,960.92 = 1,276.54 : x
2. Step 2: Convert to fraction form
   1,422.34/1,960.92 = 1,276.54/x
3. Step 3: Cross multiply
   1,422.34x = 1,960.92 × 1,276.54
4. Step 4: Simplify right side
   1,422.34x = 2,503,192.82
5. Step 5: Solve for x
   x = 2,503,192.82/1,422.34
6. Step 6: Final answer
   x = 1,759.91