Finding the Fourth Proportional to 2,541.53, 3,810.78 and 980.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,541.53 : 3,810.78 = 980.24 : x
2. Step 2: Convert to fraction form
   2,541.53/3,810.78 = 980.24/x
3. Step 3: Cross multiply
   2,541.53x = 3,810.78 × 980.24
4. Step 4: Simplify right side
   2,541.53x = 3,735,481.37
5. Step 5: Solve for x
   x = 3,735,481.37/2,541.53
6. Step 6: Final answer
   x = 1,469.78