Finding the Fourth Proportional to 1,919.82, 2,649.02 and 1,080.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919.82 : 2,649.02 = 1,080.56 : x
2. Step 2: Convert to fraction form
   1,919.82/2,649.02 = 1,080.56/x
3. Step 3: Cross multiply
   1,919.82x = 2,649.02 × 1,080.56
4. Step 4: Simplify right side
   1,919.82x = 2,862,426.27
5. Step 5: Solve for x
   x = 2,862,426.27/1,919.82
6. Step 6: Final answer
   x = 1,490.98