Finding the Fourth Proportional to 2,600.86, 3,589.26 and 1,422.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,600.86 : 3,589.26 = 1,422.01 : x
2. Step 2: Convert to fraction form
   2,600.86/3,589.26 = 1,422.01/x
3. Step 3: Cross multiply
   2,600.86x = 3,589.26 × 1,422.01
4. Step 4: Simplify right side
   2,600.86x = 5,103,950.58
5. Step 5: Solve for x
   x = 5,103,950.58/2,600.86
6. Step 6: Final answer
   x = 1,962.41