Finding the Fourth Proportional to 2,063.58, 2,846.88 and 1,399.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,063.58 : 2,846.88 = 1,399.38 : x
2. Step 2: Convert to fraction form
   2,063.58/2,846.88 = 1,399.38/x
3. Step 3: Cross multiply
   2,063.58x = 2,846.88 × 1,399.38
4. Step 4: Simplify right side
   2,063.58x = 3,983,866.93
5. Step 5: Solve for x
   x = 3,983,866.93/2,063.58
6. Step 6: Final answer
   x = 1,930.56