Finding the Fourth Proportional to 2,601.73, 3,590.33 and 1,422.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.73 : 3,590.33 = 1,422.78 : x
2. Step 2: Convert to fraction form
   2,601.73/3,590.33 = 1,422.78/x
3. Step 3: Cross multiply
   2,601.73x = 3,590.33 × 1,422.78
4. Step 4: Simplify right side
   2,601.73x = 5,108,249.72
5. Step 5: Solve for x
   x = 5,108,249.72/2,601.73
6. Step 6: Final answer
   x = 1,963.41