Finding the Fourth Proportional to 3,868.73, 5,338.86 and 2,100.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.73 : 5,338.86 = 2,100.33 : x
2. Step 2: Convert to fraction form
   3,868.73/5,338.86 = 2,100.33/x
3. Step 3: Cross multiply
   3,868.73x = 5,338.86 × 2,100.33
4. Step 4: Simplify right side
   3,868.73x = 11,213,367.82
5. Step 5: Solve for x
   x = 11,213,367.82/3,868.73
6. Step 6: Final answer
   x = 2,898.47