Finding the Fourth Proportional to 2,613.40, 3,606.50 and 1,434.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.40 : 3,606.50 = 1,434.48 : x
2. Step 2: Convert to fraction form
   2,613.40/3,606.50 = 1,434.48/x
3. Step 3: Cross multiply
   2,613.40x = 3,606.50 × 1,434.48
4. Step 4: Simplify right side
   2,613.40x = 5,173,452.12
5. Step 5: Solve for x
   x = 5,173,452.12/2,613.40
6. Step 6: Final answer
   x = 1,979.59