Finding the Fourth Proportional to 2,613.58, 3,606.81 and 1,434.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.58 : 3,606.81 = 1,434.70 : x
2. Step 2: Convert to fraction form
   2,613.58/3,606.81 = 1,434.70/x
3. Step 3: Cross multiply
   2,613.58x = 3,606.81 × 1,434.70
4. Step 4: Simplify right side
   2,613.58x = 5,174,690.31
5. Step 5: Solve for x
   x = 5,174,690.31/2,613.58
6. Step 6: Final answer
   x = 1,979.92