Finding the Fourth Proportional to 4,441.82, 6,665.61 and 1,978.14

Step by Step Solution

1. Step 1: Write the proportion equation
   4,441.82 : 6,665.61 = 1,978.14 : x
2. Step 2: Convert to fraction form
   4,441.82/6,665.61 = 1,978.14/x
3. Step 3: Cross multiply
   4,441.82x = 6,665.61 × 1,978.14
4. Step 4: Simplify right side
   4,441.82x = 13,185,509.77
5. Step 5: Solve for x
   x = 13,185,509.77/4,441.82
6. Step 6: Final answer
   x = 2,968.49