Finding the Fourth Proportional to 3,751.15, 5,626.23 and 978.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,751.15 : 5,626.23 = 978.01 : x
2. Step 2: Convert to fraction form
   3,751.15/5,626.23 = 978.01/x
3. Step 3: Cross multiply
   3,751.15x = 5,626.23 × 978.01
4. Step 4: Simplify right side
   3,751.15x = 5,502,509.20
5. Step 5: Solve for x
   x = 5,502,509.20/3,751.15
6. Step 6: Final answer
   x = 1,466.89