Finding the Fourth Proportional to 2,542.72, 3,810.60 and 981.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,542.72 : 3,810.60 = 981.04 : x
2. Step 2: Convert to fraction form
   2,542.72/3,810.60 = 981.04/x
3. Step 3: Cross multiply
   2,542.72x = 3,810.60 × 981.04
4. Step 4: Simplify right side
   2,542.72x = 3,738,351.02
5. Step 5: Solve for x
   x = 3,738,351.02/2,542.72
6. Step 6: Final answer
   x = 1,470.22