Finding the Fourth Proportional to 2,308.61, 3,475.38 and 2,107.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.61 : 3,475.38 = 2,107.73 : x
2. Step 2: Convert to fraction form
   2,308.61/3,475.38 = 2,107.73/x
3. Step 3: Cross multiply
   2,308.61x = 3,475.38 × 2,107.73
4. Step 4: Simplify right side
   2,308.61x = 7,325,145.31
5. Step 5: Solve for x
   x = 7,325,145.31/2,308.61
6. Step 6: Final answer
   x = 3,172.97