Finding the Fourth Proportional to 2,798.80, 4,199.58 and 1,155.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.80 : 4,199.58 = 1,155.82 : x
2. Step 2: Convert to fraction form
   2,798.80/4,199.58 = 1,155.82/x
3. Step 3: Cross multiply
   2,798.80x = 4,199.58 × 1,155.82
4. Step 4: Simplify right side
   2,798.80x = 4,853,958.56
5. Step 5: Solve for x
   x = 4,853,958.56/2,798.80
6. Step 6: Final answer
   x = 1,734.30