Finding the Fourth Proportional to 2,926.00, 4,388.51 and 978.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,926.00 : 4,388.51 = 978.20 : x
2. Step 2: Convert to fraction form
   2,926.00/4,388.51 = 978.20/x
3. Step 3: Cross multiply
   2,926.00x = 4,388.51 × 978.20
4. Step 4: Simplify right side
   2,926.00x = 4,292,813.65
5. Step 5: Solve for x
   x = 4,292,813.65/2,926.00
6. Step 6: Final answer
   x = 1,467.13