Finding the Fourth Proportional to 1,964.96, 2,711.56 and 1,080.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,964.96 : 2,711.56 = 1,080.70 : x
2. Step 2: Convert to fraction form
   1,964.96/2,711.56 = 1,080.70/x
3. Step 3: Cross multiply
   1,964.96x = 2,711.56 × 1,080.70
4. Step 4: Simplify right side
   1,964.96x = 2,930,382.89
5. Step 5: Solve for x
   x = 2,930,382.89/1,964.96
6. Step 6: Final answer
   x = 1,491.32