Finding the Fourth Proportional to 3,698.76, 5,104.74 and 2,126.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,698.76 : 5,104.74 = 2,126.86 : x
2. Step 2: Convert to fraction form
   3,698.76/5,104.74 = 2,126.86/x
3. Step 3: Cross multiply
   3,698.76x = 5,104.74 × 2,126.86
4. Step 4: Simplify right side
   3,698.76x = 10,857,067.32
5. Step 5: Solve for x
   x = 10,857,067.32/3,698.76
6. Step 6: Final answer
   x = 2,935.33