Finding the Fourth Proportional to 2,601.83, 3,590.53 and 1,422.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.83 : 3,590.53 = 1,422.90 : x
2. Step 2: Convert to fraction form
   2,601.83/3,590.53 = 1,422.90/x
3. Step 3: Cross multiply
   2,601.83x = 3,590.53 × 1,422.90
4. Step 4: Simplify right side
   2,601.83x = 5,108,965.14
5. Step 5: Solve for x
   x = 5,108,965.14/2,601.83
6. Step 6: Final answer
   x = 1,963.60