Finding the Fourth Proportional to 1,763.39, 2,643.78 and 873.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,763.39 : 2,643.78 = 873.41 : x
2. Step 2: Convert to fraction form
   1,763.39/2,643.78 = 873.41/x
3. Step 3: Cross multiply
   1,763.39x = 2,643.78 × 873.41
4. Step 4: Simplify right side
   1,763.39x = 2,309,103.89
5. Step 5: Solve for x
   x = 2,309,103.89/1,763.39
6. Step 6: Final answer
   x = 1,309.47