Finding the Fourth Proportional to 3,678.82, 5,076.72 and 2,738.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,678.82 : 5,076.72 = 2,738.81 : x
2. Step 2: Convert to fraction form
   3,678.82/5,076.72 = 2,738.81/x
3. Step 3: Cross multiply
   3,678.82x = 5,076.72 × 2,738.81
4. Step 4: Simplify right side
   3,678.82x = 13,904,178.35
5. Step 5: Solve for x
   x = 13,904,178.35/3,678.82
6. Step 6: Final answer
   x = 3,779.53