Finding the Fourth Proportional to 3,993.52, 5,990.86 and 1,219.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.52 : 5,990.86 = 1,219.82 : x
2. Step 2: Convert to fraction form
   3,993.52/5,990.86 = 1,219.82/x
3. Step 3: Cross multiply
   3,993.52x = 5,990.86 × 1,219.82
4. Step 4: Simplify right side
   3,993.52x = 7,307,784.54
5. Step 5: Solve for x
   x = 7,307,784.54/3,993.52
6. Step 6: Final answer
   x = 1,829.91