Finding the Fourth Proportional to 2,613.68, 3,606.88 and 1,434.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.68 : 3,606.88 = 1,434.75 : x
2. Step 2: Convert to fraction form
   2,613.68/3,606.88 = 1,434.75/x
3. Step 3: Cross multiply
   2,613.68x = 3,606.88 × 1,434.75
4. Step 4: Simplify right side
   2,613.68x = 5,174,963.91
5. Step 5: Solve for x
   x = 5,174,963.91/2,613.68
6. Step 6: Final answer
   x = 1,979.95