Finding the Fourth Proportional to 2,678.25, 3,696.09 and 1,499.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.25 : 3,696.09 = 1,499.31 : x
2. Step 2: Convert to fraction form
   2,678.25/3,696.09 = 1,499.31/x
3. Step 3: Cross multiply
   2,678.25x = 3,696.09 × 1,499.31
4. Step 4: Simplify right side
   2,678.25x = 5,541,584.70
5. Step 5: Solve for x
   x = 5,541,584.70/2,678.25
6. Step 6: Final answer
   x = 2,069.11