Finding the Fourth Proportional to 2,684.78, 3,705.27 and 1,505.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,684.78 : 3,705.27 = 1,505.85 : x
2. Step 2: Convert to fraction form
   2,684.78/3,705.27 = 1,505.85/x
3. Step 3: Cross multiply
   2,684.78x = 3,705.27 × 1,505.85
4. Step 4: Simplify right side
   2,684.78x = 5,579,580.83
5. Step 5: Solve for x
   x = 5,579,580.83/2,684.78
6. Step 6: Final answer
   x = 2,078.23