Finding the Fourth Proportional to 3,857.89, 5,784.20 and 1,855.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,857.89 : 5,784.20 = 1,855.52 : x
2. Step 2: Convert to fraction form
   3,857.89/5,784.20 = 1,855.52/x
3. Step 3: Cross multiply
   3,857.89x = 5,784.20 × 1,855.52
4. Step 4: Simplify right side
   3,857.89x = 10,732,695.44
5. Step 5: Solve for x
   x = 10,732,695.44/3,857.89
6. Step 6: Final answer
   x = 2,782.01