Finding the Fourth Proportional to 2,678.61, 3,696.48 and 1,499.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.61 : 3,696.48 = 1,499.91 : x
2. Step 2: Convert to fraction form
   2,678.61/3,696.48 = 1,499.91/x
3. Step 3: Cross multiply
   2,678.61x = 3,696.48 × 1,499.91
4. Step 4: Simplify right side
   2,678.61x = 5,544,387.32
5. Step 5: Solve for x
   x = 5,544,387.32/2,678.61
6. Step 6: Final answer
   x = 2,069.87