Finding the Fourth Proportional to 3,869.00, 5,339.33 and 2,100.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,869.00 : 5,339.33 = 2,100.71 : x
2. Step 2: Convert to fraction form
   3,869.00/5,339.33 = 2,100.71/x
3. Step 3: Cross multiply
   3,869.00x = 5,339.33 × 2,100.71
4. Step 4: Simplify right side
   3,869.00x = 11,216,402.52
5. Step 5: Solve for x
   x = 11,216,402.52/3,869.00
6. Step 6: Final answer
   x = 2,899.05