Finding the Fourth Proportional to 3,751.83, 5,627.81 and 978.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,751.83 : 5,627.81 = 978.35 : x
2. Step 2: Convert to fraction form
   3,751.83/5,627.81 = 978.35/x
3. Step 3: Cross multiply
   3,751.83x = 5,627.81 × 978.35
4. Step 4: Simplify right side
   3,751.83x = 5,505,942.22
5. Step 5: Solve for x
   x = 5,505,942.22/3,751.83
6. Step 6: Final answer
   x = 1,467.54