Finding the Fourth Proportional to 2,077.56, 3,114.18 and 981

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.56 : 3,114.18 = 981 : x
2. Step 2: Convert to fraction form
   2,077.56/3,114.18 = 981/x
3. Step 3: Cross multiply
   2,077.56x = 3,114.18 × 981
4. Step 4: Simplify right side
   2,077.56x = 3,055,010.58
5. Step 5: Solve for x
   x = 3,055,010.58/2,077.56
6. Step 6: Final answer
   x = 1,470.48