Finding the Fourth Proportional to 2,894.50, 4,342.49 and 842.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,894.50 : 4,342.49 = 842.50 : x
2. Step 2: Convert to fraction form
   2,894.50/4,342.49 = 842.50/x
3. Step 3: Cross multiply
   2,894.50x = 4,342.49 × 842.50
4. Step 4: Simplify right side
   2,894.50x = 3,658,547.83
5. Step 5: Solve for x
   x = 3,658,547.83/2,894.50
6. Step 6: Final answer
   x = 1,263.97