Finding the Fourth Proportional to 3,338.52, 5,012.31 and 2,102.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,338.52 : 5,012.31 = 2,102.22 : x
2. Step 2: Convert to fraction form
   3,338.52/5,012.31 = 2,102.22/x
3. Step 3: Cross multiply
   3,338.52x = 5,012.31 × 2,102.22
4. Step 4: Simplify right side
   3,338.52x = 10,536,978.33
5. Step 5: Solve for x
   x = 10,536,978.33/3,338.52
6. Step 6: Final answer
   x = 3,156.18