Finding the Fourth Proportional to 1,799.24, 2,703.74 and 978.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,799.24 : 2,703.74 = 978.12 : x
2. Step 2: Convert to fraction form
   1,799.24/2,703.74 = 978.12/x
3. Step 3: Cross multiply
   1,799.24x = 2,703.74 × 978.12
4. Step 4: Simplify right side
   1,799.24x = 2,644,582.17
5. Step 5: Solve for x
   x = 2,644,582.17/1,799.24
6. Step 6: Final answer
   x = 1,469.83