Finding the Fourth Proportional to 4,667.05, 6,440.68 and 2,678.00

Step by Step Solution

1. Step 1: Write the proportion equation
   4,667.05 : 6,440.68 = 2,678.00 : x
2. Step 2: Convert to fraction form
   4,667.05/6,440.68 = 2,678.00/x
3. Step 3: Cross multiply
   4,667.05x = 6,440.68 × 2,678.00
4. Step 4: Simplify right side
   4,667.05x = 17,248,112.18
5. Step 5: Solve for x
   x = 17,248,112.18/4,667.05
6. Step 6: Final answer
   x = 3,695.72