Finding the Fourth Proportional to 3,867.17, 5,336.72 and 2,098.77

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867.17 : 5,336.72 = 2,098.77 : x
2. Step 2: Convert to fraction form
   3,867.17/5,336.72 = 2,098.77/x
3. Step 3: Cross multiply
   3,867.17x = 5,336.72 × 2,098.77
4. Step 4: Simplify right side
   3,867.17x = 11,200,537.34
5. Step 5: Solve for x
   x = 11,200,537.34/3,867.17
6. Step 6: Final answer
   x = 2,896.32