Finding the Fourth Proportional to 3,978.82, 5,967.72 and 1,512.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.82 : 5,967.72 = 1,512.98 : x
2. Step 2: Convert to fraction form
   3,978.82/5,967.72 = 1,512.98/x
3. Step 3: Cross multiply
   3,978.82x = 5,967.72 × 1,512.98
4. Step 4: Simplify right side
   3,978.82x = 9,029,003.60
5. Step 5: Solve for x
   x = 9,029,003.60/3,978.82
6. Step 6: Final answer
   x = 2,269.27