Finding the Fourth Proportional to 4,707.27, 7,061.31 and 1,420.29

Step by Step Solution

1. Step 1: Write the proportion equation
   4,707.27 : 7,061.31 = 1,420.29 : x
2. Step 2: Convert to fraction form
   4,707.27/7,061.31 = 1,420.29/x
3. Step 3: Cross multiply
   4,707.27x = 7,061.31 × 1,420.29
4. Step 4: Simplify right side
   4,707.27x = 10,029,107.98
5. Step 5: Solve for x
   x = 10,029,107.98/4,707.27
6. Step 6: Final answer
   x = 2,130.56