Finding the Fourth Proportional to 1,844.40, 2,767.41 and 978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,844.40 : 2,767.41 = 978.50 : x
2. Step 2: Convert to fraction form
   1,844.40/2,767.41 = 978.50/x
3. Step 3: Cross multiply
   1,844.40x = 2,767.41 × 978.50
4. Step 4: Simplify right side
   1,844.40x = 2,707,910.69
5. Step 5: Solve for x
   x = 2,707,910.69/1,844.40
6. Step 6: Final answer
   x = 1,468.18