Finding the Fourth Proportional to 2,613.64, 3,606.86 and 1,434.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.64 : 3,606.86 = 1,434.73 : x
2. Step 2: Convert to fraction form
   2,613.64/3,606.86 = 1,434.73/x
3. Step 3: Cross multiply
   2,613.64x = 3,606.86 × 1,434.73
4. Step 4: Simplify right side
   2,613.64x = 5,174,870.25
5. Step 5: Solve for x
   x = 5,174,870.25/2,613.64
6. Step 6: Final answer
   x = 1,979.95