Finding the Fourth Proportional to 2,613.47, 3,606.68 and 1,434.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.47 : 3,606.68 = 1,434.61 : x
2. Step 2: Convert to fraction form
   2,613.47/3,606.68 = 1,434.61/x
3. Step 3: Cross multiply
   2,613.47x = 3,606.68 × 1,434.61
4. Step 4: Simplify right side
   2,613.47x = 5,174,179.19
5. Step 5: Solve for x
   x = 5,174,179.19/2,613.47
6. Step 6: Final answer
   x = 1,979.81