Finding the Fourth Proportional to 2,601.89, 3,590.61 and 1,422.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.89 : 3,590.61 = 1,422.96 : x
2. Step 2: Convert to fraction form
   2,601.89/3,590.61 = 1,422.96/x
3. Step 3: Cross multiply
   2,601.89x = 3,590.61 × 1,422.96
4. Step 4: Simplify right side
   2,601.89x = 5,109,294.41
5. Step 5: Solve for x
   x = 5,109,294.41/2,601.89
6. Step 6: Final answer
   x = 1,963.69