Finding the Fourth Proportional to 3,978.78, 5,963.67 and 2,026.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.78 : 5,963.67 = 2,026.86 : x
2. Step 2: Convert to fraction form
   3,978.78/5,963.67 = 2,026.86/x
3. Step 3: Cross multiply
   3,978.78x = 5,963.67 × 2,026.86
4. Step 4: Simplify right side
   3,978.78x = 12,087,524.18
5. Step 5: Solve for x
   x = 12,087,524.18/3,978.78
6. Step 6: Final answer
   x = 3,038.00