Finding the Fourth Proportional to 2,613.70, 3,606.86 and 1,434.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.70 : 3,606.86 = 1,434.70 : x
2. Step 2: Convert to fraction form
   2,613.70/3,606.86 = 1,434.70/x
3. Step 3: Cross multiply
   2,613.70x = 3,606.86 × 1,434.70
4. Step 4: Simplify right side
   2,613.70x = 5,174,762.04
5. Step 5: Solve for x
   x = 5,174,762.04/2,613.70
6. Step 6: Final answer
   x = 1,979.86