Finding the Fourth Proportional to 3,916.94, 5,404.59 and 2,238.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,916.94 : 5,404.59 = 2,238.90 : x
2. Step 2: Convert to fraction form
   3,916.94/5,404.59 = 2,238.90/x
3. Step 3: Cross multiply
   3,916.94x = 5,404.59 × 2,238.90
4. Step 4: Simplify right side
   3,916.94x = 12,100,336.55
5. Step 5: Solve for x
   x = 12,100,336.55/3,916.94
6. Step 6: Final answer
   x = 3,089.23