Finding the Fourth Proportional to 2,073.15, 3,108.51 and 978.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.15 : 3,108.51 = 978.03 : x
2. Step 2: Convert to fraction form
   2,073.15/3,108.51 = 978.03/x
3. Step 3: Cross multiply
   2,073.15x = 3,108.51 × 978.03
4. Step 4: Simplify right side
   2,073.15x = 3,040,216.04
5. Step 5: Solve for x
   x = 3,040,216.04/2,073.15
6. Step 6: Final answer
   x = 1,466.47