Finding the Fourth Proportional to 4,018.86, 6,026.31 and 1,678.16

Step by Step Solution

1. Step 1: Write the proportion equation
   4,018.86 : 6,026.31 = 1,678.16 : x
2. Step 2: Convert to fraction form
   4,018.86/6,026.31 = 1,678.16/x
3. Step 3: Cross multiply
   4,018.86x = 6,026.31 × 1,678.16
4. Step 4: Simplify right side
   4,018.86x = 10,113,112.39
5. Step 5: Solve for x
   x = 10,113,112.39/4,018.86
6. Step 6: Final answer
   x = 2,516.42