Finding the Fourth Proportional to 2,864.69, 4,297.86 and 1,199.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,864.69 : 4,297.86 = 1,199.60 : x
2. Step 2: Convert to fraction form
   2,864.69/4,297.86 = 1,199.60/x
3. Step 3: Cross multiply
   2,864.69x = 4,297.86 × 1,199.60
4. Step 4: Simplify right side
   2,864.69x = 5,155,691.37
5. Step 5: Solve for x
   x = 5,155,691.37/2,864.69
6. Step 6: Final answer
   x = 1,799.74