Finding the Fourth Proportional to 2,978.54, 4,109.63 and 1,799.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.54 : 4,109.63 = 1,799.39 : x
2. Step 2: Convert to fraction form
   2,978.54/4,109.63 = 1,799.39/x
3. Step 3: Cross multiply
   2,978.54x = 4,109.63 × 1,799.39
4. Step 4: Simplify right side
   2,978.54x = 7,394,797.58
5. Step 5: Solve for x
   x = 7,394,797.58/2,978.54
6. Step 6: Final answer
   x = 2,482.70