Finding the Fourth Proportional to 3,444.23, 5,165.76 and 978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,444.23 : 5,165.76 = 978.50 : x
2. Step 2: Convert to fraction form
   3,444.23/5,165.76 = 978.50/x
3. Step 3: Cross multiply
   3,444.23x = 5,165.76 × 978.50
4. Step 4: Simplify right side
   3,444.23x = 5,054,696.16
5. Step 5: Solve for x
   x = 5,054,696.16/3,444.23
6. Step 6: Final answer
   x = 1,467.58