Finding the Fourth Proportional to 2,104.61, 3,155.85 and 1,227.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.61 : 3,155.85 = 1,227.42 : x
2. Step 2: Convert to fraction form
   2,104.61/3,155.85 = 1,227.42/x
3. Step 3: Cross multiply
   2,104.61x = 3,155.85 × 1,227.42
4. Step 4: Simplify right side
   2,104.61x = 3,873,553.41
5. Step 5: Solve for x
   x = 3,873,553.41/2,104.61
6. Step 6: Final answer
   x = 1,840.51