Finding the Fourth Proportional to 2,074.04, 3,111.98 and 978.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.04 : 3,111.98 = 978.26 : x
2. Step 2: Convert to fraction form
   2,074.04/3,111.98 = 978.26/x
3. Step 3: Cross multiply
   2,074.04x = 3,111.98 × 978.26
4. Step 4: Simplify right side
   2,074.04x = 3,044,325.55
5. Step 5: Solve for x
   x = 3,044,325.55/2,074.04
6. Step 6: Final answer
   x = 1,467.82