Finding the Fourth Proportional to 2,978.49, 4,109.65 and 1,799.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.49 : 4,109.65 = 1,799.34 : x
2. Step 2: Convert to fraction form
   2,978.49/4,109.65 = 1,799.34/x
3. Step 3: Cross multiply
   2,978.49x = 4,109.65 × 1,799.34
4. Step 4: Simplify right side
   2,978.49x = 7,394,657.63
5. Step 5: Solve for x
   x = 7,394,657.63/2,978.49
6. Step 6: Final answer
   x = 2,482.69