Finding the Fourth Proportional to 3,947.67, 5,444.78 and 3,522.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947.67 : 5,444.78 = 3,522.69 : x
2. Step 2: Convert to fraction form
   3,947.67/5,444.78 = 3,522.69/x
3. Step 3: Cross multiply
   3,947.67x = 5,444.78 × 3,522.69
4. Step 4: Simplify right side
   3,947.67x = 19,180,254.44
5. Step 5: Solve for x
   x = 19,180,254.44/3,947.67
6. Step 6: Final answer
   x = 4,858.63