Finding the Fourth Proportional to 2,073.94, 3,111.16 and 978.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.94 : 3,111.16 = 978.54 : x
2. Step 2: Convert to fraction form
   2,073.94/3,111.16 = 978.54/x
3. Step 3: Cross multiply
   2,073.94x = 3,111.16 × 978.54
4. Step 4: Simplify right side
   2,073.94x = 3,044,394.51
5. Step 5: Solve for x
   x = 3,044,394.51/2,073.94
6. Step 6: Final answer
   x = 1,467.93