Finding the Fourth Proportional to 3,444.39, 5,165.82 and 978.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,444.39 : 5,165.82 = 978.75 : x
2. Step 2: Convert to fraction form
   3,444.39/5,165.82 = 978.75/x
3. Step 3: Cross multiply
   3,444.39x = 5,165.82 × 978.75
4. Step 4: Simplify right side
   3,444.39x = 5,056,046.33
5. Step 5: Solve for x
   x = 5,056,046.33/3,444.39
6. Step 6: Final answer
   x = 1,467.91