Finding the Fourth Proportional to 3,698.42, 5,103.27 and 2,126.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,698.42 : 5,103.27 = 2,126.21 : x
2. Step 2: Convert to fraction form
   3,698.42/5,103.27 = 2,126.21/x
3. Step 3: Cross multiply
   3,698.42x = 5,103.27 × 2,126.21
4. Step 4: Simplify right side
   3,698.42x = 10,850,623.71
5. Step 5: Solve for x
   x = 10,850,623.71/3,698.42
6. Step 6: Final answer
   x = 2,933.85