Finding the Fourth Proportional to 1,419.94, 2,127.51 and 980.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.94 : 2,127.51 = 980.71 : x
2. Step 2: Convert to fraction form
   1,419.94/2,127.51 = 980.71/x
3. Step 3: Cross multiply
   1,419.94x = 2,127.51 × 980.71
4. Step 4: Simplify right side
   1,419.94x = 2,086,470.33
5. Step 5: Solve for x
   x = 2,086,470.33/1,419.94
6. Step 6: Final answer
   x = 1,469.41