Finding the Fourth Proportional to 2,661.96, 3,667.39 and 2,102.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.96 : 3,667.39 = 2,102.23 : x
2. Step 2: Convert to fraction form
   2,661.96/3,667.39 = 2,102.23/x
3. Step 3: Cross multiply
   2,661.96x = 3,667.39 × 2,102.23
4. Step 4: Simplify right side
   2,661.96x = 7,709,696.61
5. Step 5: Solve for x
   x = 7,709,696.61/2,661.96
6. Step 6: Final answer
   x = 2,896.24