Finding the Fourth Proportional to 3,868.73, 5,338.72 and 2,100.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.73 : 5,338.72 = 2,100.34 : x
2. Step 2: Convert to fraction form
   3,868.73/5,338.72 = 2,100.34/x
3. Step 3: Cross multiply
   3,868.73x = 5,338.72 × 2,100.34
4. Step 4: Simplify right side
   3,868.73x = 11,213,127.16
5. Step 5: Solve for x
   x = 11,213,127.16/3,868.73
6. Step 6: Final answer
   x = 2,898.40