Finding the Fourth Proportional to 3,890.47, 5,822.89 and 3,745.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,890.47 : 5,822.89 = 3,745.92 : x
2. Step 2: Convert to fraction form
   3,890.47/5,822.89 = 3,745.92/x
3. Step 3: Cross multiply
   3,890.47x = 5,822.89 × 3,745.92
4. Step 4: Simplify right side
   3,890.47x = 21,812,076.20
5. Step 5: Solve for x
   x = 21,812,076.20/3,890.47
6. Step 6: Final answer
   x = 5,606.54