Finding the Fourth Proportional to 2,017.86, 3,027.33 and 978.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.86 : 3,027.33 = 978.36 : x
2. Step 2: Convert to fraction form
   2,017.86/3,027.33 = 978.36/x
3. Step 3: Cross multiply
   2,017.86x = 3,027.33 × 978.36
4. Step 4: Simplify right side
   2,017.86x = 2,961,818.58
5. Step 5: Solve for x
   x = 2,961,818.58/2,017.86
6. Step 6: Final answer
   x = 1,467.80