Finding the Fourth Proportional to 1,964.27, 2,710.72 and 1,080.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,964.27 : 2,710.72 = 1,080.07 : x
2. Step 2: Convert to fraction form
   1,964.27/2,710.72 = 1,080.07/x
3. Step 3: Cross multiply
   1,964.27x = 2,710.72 × 1,080.07
4. Step 4: Simplify right side
   1,964.27x = 2,927,748.40
5. Step 5: Solve for x
   x = 2,927,748.40/1,964.27
6. Step 6: Final answer
   x = 1,490.50