Finding the Fourth Proportional to 2,796.52, 3,855.39 and 2,112.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,796.52 : 3,855.39 = 2,112.16 : x
2. Step 2: Convert to fraction form
   2,796.52/3,855.39 = 2,112.16/x
3. Step 3: Cross multiply
   2,796.52x = 3,855.39 × 2,112.16
4. Step 4: Simplify right side
   2,796.52x = 8,143,200.54
5. Step 5: Solve for x
   x = 8,143,200.54/2,796.52
6. Step 6: Final answer
   x = 2,911.90