Finding the Fourth Proportional to 3,914.42, 5,401.90 and 2,146.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.42 : 5,401.90 = 2,146.19 : x
2. Step 2: Convert to fraction form
   3,914.42/5,401.90 = 2,146.19/x
3. Step 3: Cross multiply
   3,914.42x = 5,401.90 × 2,146.19
4. Step 4: Simplify right side
   3,914.42x = 11,593,503.76
5. Step 5: Solve for x
   x = 11,593,503.76/3,914.42
6. Step 6: Final answer
   x = 2,961.74