Finding the Fourth Proportional to 2,684.72, 3,704.90 and 1,505.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,684.72 : 3,704.90 = 1,505.90 : x
2. Step 2: Convert to fraction form
   2,684.72/3,704.90 = 1,505.90/x
3. Step 3: Cross multiply
   2,684.72x = 3,704.90 × 1,505.90
4. Step 4: Simplify right side
   2,684.72x = 5,579,208.91
5. Step 5: Solve for x
   x = 5,579,208.91/2,684.72
6. Step 6: Final answer
   x = 2,078.13