Finding the Fourth Proportional to 4,714.91, 7,073.89 and 1,428.34

Step by Step Solution

1. Step 1: Write the proportion equation
   4,714.91 : 7,073.89 = 1,428.34 : x
2. Step 2: Convert to fraction form
   4,714.91/7,073.89 = 1,428.34/x
3. Step 3: Cross multiply
   4,714.91x = 7,073.89 × 1,428.34
4. Step 4: Simplify right side
   4,714.91x = 10,103,920.04
5. Step 5: Solve for x
   x = 10,103,920.04/4,714.91
6. Step 6: Final answer
   x = 2,142.97