Finding the Fourth Proportional to 2,613.48, 3,606.60 and 1,434.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.48 : 3,606.60 = 1,434.57 : x
2. Step 2: Convert to fraction form
   2,613.48/3,606.60 = 1,434.57/x
3. Step 3: Cross multiply
   2,613.48x = 3,606.60 × 1,434.57
4. Step 4: Simplify right side
   2,613.48x = 5,173,920.16
5. Step 5: Solve for x
   x = 5,173,920.16/2,613.48
6. Step 6: Final answer
   x = 1,979.71