Finding the Fourth Proportional to 3,789.99, 5,687.60 and 1,324.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.99 : 5,687.60 = 1,324.82 : x
2. Step 2: Convert to fraction form
   3,789.99/5,687.60 = 1,324.82/x
3. Step 3: Cross multiply
   3,789.99x = 5,687.60 × 1,324.82
4. Step 4: Simplify right side
   3,789.99x = 7,535,061.28
5. Step 5: Solve for x
   x = 7,535,061.28/3,789.99
6. Step 6: Final answer
   x = 1,988.15