Finding the Fourth Proportional to 1,780.33, 2,456.81 and 1,081.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780.33 : 2,456.81 = 1,081.93 : x
2. Step 2: Convert to fraction form
   1,780.33/2,456.81 = 1,081.93/x
3. Step 3: Cross multiply
   1,780.33x = 2,456.81 × 1,081.93
4. Step 4: Simplify right side
   1,780.33x = 2,658,086.86
5. Step 5: Solve for x
   x = 2,658,086.86/1,780.33
6. Step 6: Final answer
   x = 1,493.03