Finding the Fourth Proportional to 2,796.18, 3,858.92 and 1,850.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,796.18 : 3,858.92 = 1,850.31 : x
2. Step 2: Convert to fraction form
   2,796.18/3,858.92 = 1,850.31/x
3. Step 3: Cross multiply
   2,796.18x = 3,858.92 × 1,850.31
4. Step 4: Simplify right side
   2,796.18x = 7,140,198.27
5. Step 5: Solve for x
   x = 7,140,198.27/2,796.18
6. Step 6: Final answer
   x = 2,553.55