Finding the Fourth Proportional to 2,860.32, 4,291.82 and 1,012.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,860.32 : 4,291.82 = 1,012.83 : x
2. Step 2: Convert to fraction form
   2,860.32/4,291.82 = 1,012.83/x
3. Step 3: Cross multiply
   2,860.32x = 4,291.82 × 1,012.83
4. Step 4: Simplify right side
   2,860.32x = 4,346,884.05
5. Step 5: Solve for x
   x = 4,346,884.05/2,860.32
6. Step 6: Final answer
   x = 1,519.72