Finding the Fourth Proportional to 2,851.02, 3,932.01 and 1,855.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,851.02 : 3,932.01 = 1,855.53 : x
2. Step 2: Convert to fraction form
   2,851.02/3,932.01 = 1,855.53/x
3. Step 3: Cross multiply
   2,851.02x = 3,932.01 × 1,855.53
4. Step 4: Simplify right side
   2,851.02x = 7,295,962.52
5. Step 5: Solve for x
   x = 7,295,962.52/2,851.02
6. Step 6: Final answer
   x = 2,559.07