Finding the Fourth Proportional to 2,613.18, 3,606.20 and 1,434.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.18 : 3,606.20 = 1,434.26 : x
2. Step 2: Convert to fraction form
   2,613.18/3,606.20 = 1,434.26/x
3. Step 3: Cross multiply
   2,613.18x = 3,606.20 × 1,434.26
4. Step 4: Simplify right side
   2,613.18x = 5,172,228.41
5. Step 5: Solve for x
   x = 5,172,228.41/2,613.18
6. Step 6: Final answer
   x = 1,979.29