Finding the Fourth Proportional to 3,924.72, 5,884.25 and 1,978.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,924.72 : 5,884.25 = 1,978.29 : x
2. Step 2: Convert to fraction form
   3,924.72/5,884.25 = 1,978.29/x
3. Step 3: Cross multiply
   3,924.72x = 5,884.25 × 1,978.29
4. Step 4: Simplify right side
   3,924.72x = 11,640,743.04
5. Step 5: Solve for x
   x = 11,640,743.04/3,924.72
6. Step 6: Final answer
   x = 2,966.01