Finding the Fourth Proportional to 2,542.14, 3,810.89 and 981.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,542.14 : 3,810.89 = 981.15 : x
2. Step 2: Convert to fraction form
   2,542.14/3,810.89 = 981.15/x
3. Step 3: Cross multiply
   2,542.14x = 3,810.89 × 981.15
4. Step 4: Simplify right side
   2,542.14x = 3,739,049.82
5. Step 5: Solve for x
   x = 3,739,049.82/2,542.14
6. Step 6: Final answer
   x = 1,470.83