Finding the Fourth Proportional to 3,868.84, 5,339.00 and 2,100.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.84 : 5,339.00 = 2,100.49 : x
2. Step 2: Convert to fraction form
   3,868.84/5,339.00 = 2,100.49/x
3. Step 3: Cross multiply
   3,868.84x = 5,339.00 × 2,100.49
4. Step 4: Simplify right side
   3,868.84x = 11,214,505.61
5. Step 5: Solve for x
   x = 11,214,505.61/3,868.84
6. Step 6: Final answer
   x = 2,898.67