Finding the Fourth Proportional to 2,678.93, 3,696.39 and 1,499.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.93 : 3,696.39 = 1,499.78 : x
2. Step 2: Convert to fraction form
   2,678.93/3,696.39 = 1,499.78/x
3. Step 3: Cross multiply
   2,678.93x = 3,696.39 × 1,499.78
4. Step 4: Simplify right side
   2,678.93x = 5,543,753.31
5. Step 5: Solve for x
   x = 5,543,753.31/2,678.93
6. Step 6: Final answer
   x = 2,069.39