Finding the Fourth Proportional to 2,308.86, 3,475.76 and 2,107.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.86 : 3,475.76 = 2,107.98 : x
2. Step 2: Convert to fraction form
   2,308.86/3,475.76 = 2,107.98/x
3. Step 3: Cross multiply
   2,308.86x = 3,475.76 × 2,107.98
4. Step 4: Simplify right side
   2,308.86x = 7,326,832.56
5. Step 5: Solve for x
   x = 7,326,832.56/2,308.86
6. Step 6: Final answer
   x = 3,173.36