Finding the Fourth Proportional to 2,678.86, 3,696.82 and 1,500.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.86 : 3,696.82 = 1,500.15 : x
2. Step 2: Convert to fraction form
   2,678.86/3,696.82 = 1,500.15/x
3. Step 3: Cross multiply
   2,678.86x = 3,696.82 × 1,500.15
4. Step 4: Simplify right side
   2,678.86x = 5,545,784.52
5. Step 5: Solve for x
   x = 5,545,784.52/2,678.86
6. Step 6: Final answer
   x = 2,070.20