Finding the Fourth Proportional to 2,766.90, 4,151.55 and 1,305.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.90 : 4,151.55 = 1,305.30 : x
2. Step 2: Convert to fraction form
   2,766.90/4,151.55 = 1,305.30/x
3. Step 3: Cross multiply
   2,766.90x = 4,151.55 × 1,305.30
4. Step 4: Simplify right side
   2,766.90x = 5,419,018.22
5. Step 5: Solve for x
   x = 5,419,018.22/2,766.90
6. Step 6: Final answer
   x = 1,958.52