Finding the Fourth Proportional to 2,885.82, 4,322.71 and 2,678.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.82 : 4,322.71 = 2,678.27 : x
2. Step 2: Convert to fraction form
   2,885.82/4,322.71 = 2,678.27/x
3. Step 3: Cross multiply
   2,885.82x = 4,322.71 × 2,678.27
4. Step 4: Simplify right side
   2,885.82x = 11,577,384.51
5. Step 5: Solve for x
   x = 11,577,384.51/2,885.82
6. Step 6: Final answer
   x = 4,011.82