Finding the Fourth Proportional to 3,978.48, 5,961.24 and 2,028

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.48 : 5,961.24 = 2,028 : x
2. Step 2: Convert to fraction form
   3,978.48/5,961.24 = 2,028/x
3. Step 3: Cross multiply
   3,978.48x = 5,961.24 × 2,028
4. Step 4: Simplify right side
   3,978.48x = 12,089,394.72
5. Step 5: Solve for x
   x = 12,089,394.72/3,978.48
6. Step 6: Final answer
   x = 3,038.70