Finding the Fourth Proportional to 2,613.65, 3,606.89 and 1,434.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.65 : 3,606.89 = 1,434.72 : x
2. Step 2: Convert to fraction form
   2,613.65/3,606.89 = 1,434.72/x
3. Step 3: Cross multiply
   2,613.65x = 3,606.89 × 1,434.72
4. Step 4: Simplify right side
   2,613.65x = 5,174,859.19
5. Step 5: Solve for x
   x = 5,174,859.19/2,613.65
6. Step 6: Final answer
   x = 1,979.94