Finding the Fourth Proportional to 2,553.81, 3,524.04 and 1,434.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.81 : 3,524.04 = 1,434.66 : x
2. Step 2: Convert to fraction form
   2,553.81/3,524.04 = 1,434.66/x
3. Step 3: Cross multiply
   2,553.81x = 3,524.04 × 1,434.66
4. Step 4: Simplify right side
   2,553.81x = 5,055,799.23
5. Step 5: Solve for x
   x = 5,055,799.23/2,553.81
6. Step 6: Final answer
   x = 1,979.71