Finding the Fourth Proportional to 2,766.80, 3,818.23 and 1,507.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.80 : 3,818.23 = 1,507.86 : x
2. Step 2: Convert to fraction form
   2,766.80/3,818.23 = 1,507.86/x
3. Step 3: Cross multiply
   2,766.80x = 3,818.23 × 1,507.86
4. Step 4: Simplify right side
   2,766.80x = 5,757,346.02
5. Step 5: Solve for x
   x = 5,757,346.02/2,766.80
6. Step 6: Final answer
   x = 2,080.87