Finding the Fourth Proportional to 3,789.86, 5,230.40 and 2,219.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.86 : 5,230.40 = 2,219.27 : x
2. Step 2: Convert to fraction form
   3,789.86/5,230.40 = 2,219.27/x
3. Step 3: Cross multiply
   3,789.86x = 5,230.40 × 2,219.27
4. Step 4: Simplify right side
   3,789.86x = 11,607,632.56
5. Step 5: Solve for x
   x = 11,607,632.56/3,789.86
6. Step 6: Final answer
   x = 3,062.82