Finding the Fourth Proportional to 4,707.57, 7,061.43 and 1,420.69

Step by Step Solution

1. Step 1: Write the proportion equation
   4,707.57 : 7,061.43 = 1,420.69 : x
2. Step 2: Convert to fraction form
   4,707.57/7,061.43 = 1,420.69/x
3. Step 3: Cross multiply
   4,707.57x = 7,061.43 × 1,420.69
4. Step 4: Simplify right side
   4,707.57x = 10,032,095.91
5. Step 5: Solve for x
   x = 10,032,095.91/4,707.57
6. Step 6: Final answer
   x = 2,131.06