Finding the Fourth Proportional to 3,923.34, 5,414.12 and 2,154.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,923.34 : 5,414.12 = 2,154.98 : x
2. Step 2: Convert to fraction form
   3,923.34/5,414.12 = 2,154.98/x
3. Step 3: Cross multiply
   3,923.34x = 5,414.12 × 2,154.98
4. Step 4: Simplify right side
   3,923.34x = 11,667,320.32
5. Step 5: Solve for x
   x = 11,667,320.32/3,923.34
6. Step 6: Final answer
   x = 2,973.82