Finding the Fourth Proportional to 3,868.47, 5,797.45 and 1,783.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.47 : 5,797.45 = 1,783.89 : x
2. Step 2: Convert to fraction form
   3,868.47/5,797.45 = 1,783.89/x
3. Step 3: Cross multiply
   3,868.47x = 5,797.45 × 1,783.89
4. Step 4: Simplify right side
   3,868.47x = 10,342,013.08
5. Step 5: Solve for x
   x = 10,342,013.08/3,868.47
6. Step 6: Final answer
   x = 2,673.41