Finding the Fourth Proportional to 2,243.52, 3,365.31 and 782.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,243.52 : 3,365.31 = 782.72 : x
2. Step 2: Convert to fraction form
   2,243.52/3,365.31 = 782.72/x
3. Step 3: Cross multiply
   2,243.52x = 3,365.31 × 782.72
4. Step 4: Simplify right side
   2,243.52x = 2,634,078.62
5. Step 5: Solve for x
   x = 2,634,078.62/2,243.52
6. Step 6: Final answer
   x = 1,174.08