Finding the Fourth Proportional to 4,928.82, 7,389.57 and 2,980.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,928.82 : 7,389.57 = 2,980.56 : x
2. Step 2: Convert to fraction form
   4,928.82/7,389.57 = 2,980.56/x
3. Step 3: Cross multiply
   4,928.82x = 7,389.57 × 2,980.56
4. Step 4: Simplify right side
   4,928.82x = 22,025,056.76
5. Step 5: Solve for x
   x = 22,025,056.76/4,928.82
6. Step 6: Final answer
   x = 4,468.63