Finding the Fourth Proportional to 4,680.78, 7,019.34 and 2,340.06

Step by Step Solution

1. Step 1: Write the proportion equation
   4,680.78 : 7,019.34 = 2,340.06 : x
2. Step 2: Convert to fraction form
   4,680.78/7,019.34 = 2,340.06/x
3. Step 3: Cross multiply
   4,680.78x = 7,019.34 × 2,340.06
4. Step 4: Simplify right side
   4,680.78x = 16,425,676.76
5. Step 5: Solve for x
   x = 16,425,676.76/4,680.78
6. Step 6: Final answer
   x = 3,509.18