Finding the Fourth Proportional to 3,066.54, 4,231.50 and 1,722.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,066.54 : 4,231.50 = 1,722.12 : x
2. Step 2: Convert to fraction form
   3,066.54/4,231.50 = 1,722.12/x
3. Step 3: Cross multiply
   3,066.54x = 4,231.50 × 1,722.12
4. Step 4: Simplify right side
   3,066.54x = 7,287,150.78
5. Step 5: Solve for x
   x = 7,287,150.78/3,066.54
6. Step 6: Final answer
   x = 2,376.34