Finding the Fourth Proportional to 4,715.69, 7,073.90 and 1,429.05

Step by Step Solution

1. Step 1: Write the proportion equation
   4,715.69 : 7,073.90 = 1,429.05 : x
2. Step 2: Convert to fraction form
   4,715.69/7,073.90 = 1,429.05/x
3. Step 3: Cross multiply
   4,715.69x = 7,073.90 × 1,429.05
4. Step 4: Simplify right side
   4,715.69x = 10,108,956.80
5. Step 5: Solve for x
   x = 10,108,956.80/4,715.69
6. Step 6: Final answer
   x = 2,143.69