Finding the Fourth Proportional to 3,963.48, 5,945.56 and 1,189.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,963.48 : 5,945.56 = 1,189.96 : x
2. Step 2: Convert to fraction form
   3,963.48/5,945.56 = 1,189.96/x
3. Step 3: Cross multiply
   3,963.48x = 5,945.56 × 1,189.96
4. Step 4: Simplify right side
   3,963.48x = 7,074,978.58
5. Step 5: Solve for x
   x = 7,074,978.58/3,963.48
6. Step 6: Final answer
   x = 1,785.04