Finding the Fourth Proportional to 1,964.49, 2,710.90 and 1,080.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,964.49 : 2,710.90 = 1,080.27 : x
2. Step 2: Convert to fraction form
   1,964.49/2,710.90 = 1,080.27/x
3. Step 3: Cross multiply
   1,964.49x = 2,710.90 × 1,080.27
4. Step 4: Simplify right side
   1,964.49x = 2,928,505.29
5. Step 5: Solve for x
   x = 2,928,505.29/1,964.49
6. Step 6: Final answer
   x = 1,490.72