Finding the Fourth Proportional to 5,285.98, 7,294.69 and 2,928.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,285.98 : 7,294.69 = 2,928.16 : x
2. Step 2: Convert to fraction form
   5,285.98/7,294.69 = 2,928.16/x
3. Step 3: Cross multiply
   5,285.98x = 7,294.69 × 2,928.16
4. Step 4: Simplify right side
   5,285.98x = 21,360,019.47
5. Step 5: Solve for x
   x = 21,360,019.47/5,285.98
6. Step 6: Final answer
   x = 4,040.88