Finding the Fourth Proportional to 3,443.05, 5,164.83 and 978.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.05 : 5,164.83 = 978.07 : x
2. Step 2: Convert to fraction form
   3,443.05/5,164.83 = 978.07/x
3. Step 3: Cross multiply
   3,443.05x = 5,164.83 × 978.07
4. Step 4: Simplify right side
   3,443.05x = 5,051,534.56
5. Step 5: Solve for x
   x = 5,051,534.56/3,443.05
6. Step 6: Final answer
   x = 1,467.17