Finding the Fourth Proportional to 4,072.72, 6,109.20 and 1,150.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,072.72 : 6,109.20 = 1,150.72 : x
2. Step 2: Convert to fraction form
   4,072.72/6,109.20 = 1,150.72/x
3. Step 3: Cross multiply
   4,072.72x = 6,109.20 × 1,150.72
4. Step 4: Simplify right side
   4,072.72x = 7,029,978.62
5. Step 5: Solve for x
   x = 7,029,978.62/4,072.72
6. Step 6: Final answer
   x = 1,726.11