Finding the Fourth Proportional to 2,613.59, 3,606.64 and 1,434.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.59 : 3,606.64 = 1,434.58 : x
2. Step 2: Convert to fraction form
   2,613.59/3,606.64 = 1,434.58/x
3. Step 3: Cross multiply
   2,613.59x = 3,606.64 × 1,434.58
4. Step 4: Simplify right side
   2,613.59x = 5,174,029.37
5. Step 5: Solve for x
   x = 5,174,029.37/2,613.59
6. Step 6: Final answer
   x = 1,979.66