Finding the Fourth Proportional to 3,916.31, 5,404.34 and 2,237.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,916.31 : 5,404.34 = 2,237.99 : x
2. Step 2: Convert to fraction form
   3,916.31/5,404.34 = 2,237.99/x
3. Step 3: Cross multiply
   3,916.31x = 5,404.34 × 2,237.99
4. Step 4: Simplify right side
   3,916.31x = 12,094,847.69
5. Step 5: Solve for x
   x = 12,094,847.69/3,916.31
6. Step 6: Final answer
   x = 3,088.33