Finding the Fourth Proportional to 2,678.10, 3,695.85 and 1,499.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.10 : 3,695.85 = 1,499.21 : x
2. Step 2: Convert to fraction form
   2,678.10/3,695.85 = 1,499.21/x
3. Step 3: Cross multiply
   2,678.10x = 3,695.85 × 1,499.21
4. Step 4: Simplify right side
   2,678.10x = 5,540,836.80
5. Step 5: Solve for x
   x = 5,540,836.80/2,678.10
6. Step 6: Final answer
   x = 2,068.94