Finding the Fourth Proportional to 2,613.22, 3,605.97 and 1,434.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.22 : 3,605.97 = 1,434.16 : x
2. Step 2: Convert to fraction form
   2,613.22/3,605.97 = 1,434.16/x
3. Step 3: Cross multiply
   2,613.22x = 3,605.97 × 1,434.16
4. Step 4: Simplify right side
   2,613.22x = 5,171,537.94
5. Step 5: Solve for x
   x = 5,171,537.94/2,613.22
6. Step 6: Final answer
   x = 1,978.99