Finding the Fourth Proportional to 3,916.82, 5,404.88 and 2,237.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,916.82 : 5,404.88 = 2,237.90 : x
2. Step 2: Convert to fraction form
   3,916.82/5,404.88 = 2,237.90/x
3. Step 3: Cross multiply
   3,916.82x = 5,404.88 × 2,237.90
4. Step 4: Simplify right side
   3,916.82x = 12,095,549.49
5. Step 5: Solve for x
   x = 12,095,549.49/3,916.82
6. Step 6: Final answer
   x = 3,088.10