Finding the Fourth Proportional to 2,863.47, 4,294.50 and 1,219.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,863.47 : 4,294.50 = 1,219.85 : x
2. Step 2: Convert to fraction form
   2,863.47/4,294.50 = 1,219.85/x
3. Step 3: Cross multiply
   2,863.47x = 4,294.50 × 1,219.85
4. Step 4: Simplify right side
   2,863.47x = 5,238,645.83
5. Step 5: Solve for x
   x = 5,238,645.83/2,863.47
6. Step 6: Final answer
   x = 1,829.47