Finding the Fourth Proportional to 2,601.85, 3,590.55 and 1,422.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.85 : 3,590.55 = 1,422.92 : x
2. Step 2: Convert to fraction form
   2,601.85/3,590.55 = 1,422.92/x
3. Step 3: Cross multiply
   2,601.85x = 3,590.55 × 1,422.92
4. Step 4: Simplify right side
   2,601.85x = 5,109,047.45
5. Step 5: Solve for x
   x = 5,109,047.45/2,601.85
6. Step 6: Final answer
   x = 1,963.62