Finding the Fourth Proportional to 2,443.52, 3,660.42 and 1,978.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.52 : 3,660.42 = 1,978.94 : x
2. Step 2: Convert to fraction form
   2,443.52/3,660.42 = 1,978.94/x
3. Step 3: Cross multiply
   2,443.52x = 3,660.42 × 1,978.94
4. Step 4: Simplify right side
   2,443.52x = 7,243,751.55
5. Step 5: Solve for x
   x = 7,243,751.55/2,443.52
6. Step 6: Final answer
   x = 2,964.47