Finding the Fourth Proportional to 4,707.20, 7,061.40 and 1,786.34

Step by Step Solution

1. Step 1: Write the proportion equation
   4,707.20 : 7,061.40 = 1,786.34 : x
2. Step 2: Convert to fraction form
   4,707.20/7,061.40 = 1,786.34/x
3. Step 3: Cross multiply
   4,707.20x = 7,061.40 × 1,786.34
4. Step 4: Simplify right side
   4,707.20x = 12,614,061.28
5. Step 5: Solve for x
   x = 12,614,061.28/4,707.20
6. Step 6: Final answer
   x = 2,679.74