Finding the Fourth Proportional to 2,978.25, 4,109.99 and 1,799.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.25 : 4,109.99 = 1,799.55 : x
2. Step 2: Convert to fraction form
   2,978.25/4,109.99 = 1,799.55/x
3. Step 3: Cross multiply
   2,978.25x = 4,109.99 × 1,799.55
4. Step 4: Simplify right side
   2,978.25x = 7,396,123.51
5. Step 5: Solve for x
   x = 7,396,123.51/2,978.25
6. Step 6: Final answer
   x = 2,483.38