Finding the Fourth Proportional to 2,678.56, 3,696.40 and 1,499.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.56 : 3,696.40 = 1,499.64 : x
2. Step 2: Convert to fraction form
   2,678.56/3,696.40 = 1,499.64/x
3. Step 3: Cross multiply
   2,678.56x = 3,696.40 × 1,499.64
4. Step 4: Simplify right side
   2,678.56x = 5,543,269.30
5. Step 5: Solve for x
   x = 5,543,269.30/2,678.56
6. Step 6: Final answer
   x = 2,069.50