Finding the Fourth Proportional to 2,780.18, 3,814.73 and 2,754.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,780.18 : 3,814.73 = 2,754.06 : x
2. Step 2: Convert to fraction form
   2,780.18/3,814.73 = 2,754.06/x
3. Step 3: Cross multiply
   2,780.18x = 3,814.73 × 2,754.06
4. Step 4: Simplify right side
   2,780.18x = 10,505,995.30
5. Step 5: Solve for x
   x = 10,505,995.30/2,780.18
6. Step 6: Final answer
   x = 3,778.89