Finding the Fourth Proportional to 3,543.89, 5,314.20 and 1,078.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,543.89 : 5,314.20 = 1,078.16 : x
2. Step 2: Convert to fraction form
   3,543.89/5,314.20 = 1,078.16/x
3. Step 3: Cross multiply
   3,543.89x = 5,314.20 × 1,078.16
4. Step 4: Simplify right side
   3,543.89x = 5,729,557.87
5. Step 5: Solve for x
   x = 5,729,557.87/3,543.89
6. Step 6: Final answer
   x = 1,616.74