Finding the Fourth Proportional to 2,726.73, 4,090.05 and 1,906.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,726.73 : 4,090.05 = 1,906.61 : x
2. Step 2: Convert to fraction form
   2,726.73/4,090.05 = 1,906.61/x
3. Step 3: Cross multiply
   2,726.73x = 4,090.05 × 1,906.61
4. Step 4: Simplify right side
   2,726.73x = 7,798,109.78
5. Step 5: Solve for x
   x = 7,798,109.78/2,726.73
6. Step 6: Final answer
   x = 2,859.88