Finding the Fourth Proportional to 6,243.12, 9,366.56 and 1,860.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,243.12 : 9,366.56 = 1,860.72 : x
2. Step 2: Convert to fraction form
   6,243.12/9,366.56 = 1,860.72/x
3. Step 3: Cross multiply
   6,243.12x = 9,366.56 × 1,860.72
4. Step 4: Simplify right side
   6,243.12x = 17,428,545.52
5. Step 5: Solve for x
   x = 17,428,545.52/6,243.12
6. Step 6: Final answer
   x = 2,791.64