Finding the Fourth Proportional to 3,868.89, 5,801.85 and 1,893.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.89 : 5,801.85 = 1,893.30 : x
2. Step 2: Convert to fraction form
   3,868.89/5,801.85 = 1,893.30/x
3. Step 3: Cross multiply
   3,868.89x = 5,801.85 × 1,893.30
4. Step 4: Simplify right side
   3,868.89x = 10,984,642.61
5. Step 5: Solve for x
   x = 10,984,642.61/3,868.89
6. Step 6: Final answer
   x = 2,839.22