Finding the Fourth Proportional to 2,601.12, 3,589.55 and 1,422.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.12 : 3,589.55 = 1,422.19 : x
2. Step 2: Convert to fraction form
   2,601.12/3,589.55 = 1,422.19/x
3. Step 3: Cross multiply
   2,601.12x = 3,589.55 × 1,422.19
4. Step 4: Simplify right side
   2,601.12x = 5,105,024.82
5. Step 5: Solve for x
   x = 5,105,024.82/2,601.12
6. Step 6: Final answer
   x = 1,962.63