Finding the Fourth Proportional to 2,613.21, 3,606.19 and 1,434.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.21 : 3,606.19 = 1,434.27 : x
2. Step 2: Convert to fraction form
   2,613.21/3,606.19 = 1,434.27/x
3. Step 3: Cross multiply
   2,613.21x = 3,606.19 × 1,434.27
4. Step 4: Simplify right side
   2,613.21x = 5,172,260.07
5. Step 5: Solve for x
   x = 5,172,260.07/2,613.21
6. Step 6: Final answer
   x = 1,979.27