Finding the Fourth Proportional to 3,916.42, 5,404.83 and 2,147.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,916.42 : 5,404.83 = 2,147.98 : x
2. Step 2: Convert to fraction form
   3,916.42/5,404.83 = 2,147.98/x
3. Step 3: Cross multiply
   3,916.42x = 5,404.83 × 2,147.98
4. Step 4: Simplify right side
   3,916.42x = 11,609,466.74
5. Step 5: Solve for x
   x = 11,609,466.74/3,916.42
6. Step 6: Final answer
   x = 2,964.31