Finding the Fourth Proportional to 2,309.61, 3,476.89 and 2,108.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309.61 : 3,476.89 = 2,108.73 : x
2. Step 2: Convert to fraction form
   2,309.61/3,476.89 = 2,108.73/x
3. Step 3: Cross multiply
   2,309.61x = 3,476.89 × 2,108.73
4. Step 4: Simplify right side
   2,309.61x = 7,331,822.25
5. Step 5: Solve for x
   x = 7,331,822.25/2,309.61
6. Step 6: Final answer
   x = 3,174.48