Finding the Fourth Proportional to 1,141.97, 1,704.61 and 980.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.97 : 1,704.61 = 980.69 : x
2. Step 2: Convert to fraction form
   1,141.97/1,704.61 = 980.69/x
3. Step 3: Cross multiply
   1,141.97x = 1,704.61 × 980.69
4. Step 4: Simplify right side
   1,141.97x = 1,671,693.98
5. Step 5: Solve for x
   x = 1,671,693.98/1,141.97
6. Step 6: Final answer
   x = 1,463.87