Finding the Fourth Proportional to 2,978.64, 4,109.92 and 1,799.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.64 : 4,109.92 = 1,799.77 : x
2. Step 2: Convert to fraction form
   2,978.64/4,109.92 = 1,799.77/x
3. Step 3: Cross multiply
   2,978.64x = 4,109.92 × 1,799.77
4. Step 4: Simplify right side
   2,978.64x = 7,396,910.72
5. Step 5: Solve for x
   x = 7,396,910.72/2,978.64
6. Step 6: Final answer
   x = 2,483.32