Finding the Fourth Proportional to 3,868.33, 5,338.31 and 2,099.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.33 : 5,338.31 = 2,099.93 : x
2. Step 2: Convert to fraction form
   3,868.33/5,338.31 = 2,099.93/x
3. Step 3: Cross multiply
   3,868.33x = 5,338.31 × 2,099.93
4. Step 4: Simplify right side
   3,868.33x = 11,210,077.32
5. Step 5: Solve for x
   x = 11,210,077.32/3,868.33
6. Step 6: Final answer
   x = 2,897.91