Finding the Fourth Proportional to 2,261.72, 3,122.26 and 1,422.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,261.72 : 3,122.26 = 1,422.83 : x
2. Step 2: Convert to fraction form
   2,261.72/3,122.26 = 1,422.83/x
3. Step 3: Cross multiply
   2,261.72x = 3,122.26 × 1,422.83
4. Step 4: Simplify right side
   2,261.72x = 4,442,426.03
5. Step 5: Solve for x
   x = 4,442,426.03/2,261.72
6. Step 6: Final answer
   x = 1,964.18