Finding the Fourth Proportional to 3,714.52, 5,571.76 and 978.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,714.52 : 5,571.76 = 978.52 : x
2. Step 2: Convert to fraction form
   3,714.52/5,571.76 = 978.52/x
3. Step 3: Cross multiply
   3,714.52x = 5,571.76 × 978.52
4. Step 4: Simplify right side
   3,714.52x = 5,452,078.60
5. Step 5: Solve for x
   x = 5,452,078.60/3,714.52
6. Step 6: Final answer
   x = 1,467.77