Finding the Fourth Proportional to 1,920.30, 2,649.98 and 1,081.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920.30 : 2,649.98 = 1,081.00 : x
2. Step 2: Convert to fraction form
   1,920.30/2,649.98 = 1,081.00/x
3. Step 3: Cross multiply
   1,920.30x = 2,649.98 × 1,081.00
4. Step 4: Simplify right side
   1,920.30x = 2,864,613.41
5. Step 5: Solve for x
   x = 2,864,613.41/1,920.30
6. Step 6: Final answer
   x = 1,491.76