Finding the Fourth Proportional to 1,778.76, 2,665.71 and 1,119.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778.76 : 2,665.71 = 1,119.02 : x
2. Step 2: Convert to fraction form
   1,778.76/2,665.71 = 1,119.02/x
3. Step 3: Cross multiply
   1,778.76x = 2,665.71 × 1,119.02
4. Step 4: Simplify right side
   1,778.76x = 2,982,969.48
5. Step 5: Solve for x
   x = 2,982,969.48/1,778.76
6. Step 6: Final answer
   x = 1,676.99