Finding the Fourth Proportional to 2,626.22, 3,624.17 and 1,431.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,626.22 : 3,624.17 = 1,431.27 : x
2. Step 2: Convert to fraction form
   2,626.22/3,624.17 = 1,431.27/x
3. Step 3: Cross multiply
   2,626.22x = 3,624.17 × 1,431.27
4. Step 4: Simplify right side
   2,626.22x = 5,187,158.64
5. Step 5: Solve for x
   x = 5,187,158.64/2,626.22
6. Step 6: Final answer
   x = 1,975.15