Finding the Fourth Proportional to 2,978.19, 4,109.81 and 1,799.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.19 : 4,109.81 = 1,799.06 : x
2. Step 2: Convert to fraction form
   2,978.19/4,109.81 = 1,799.06/x
3. Step 3: Cross multiply
   2,978.19x = 4,109.81 × 1,799.06
4. Step 4: Simplify right side
   2,978.19x = 7,393,765.23
5. Step 5: Solve for x
   x = 7,393,765.23/2,978.19
6. Step 6: Final answer
   x = 2,482.64