Finding the Fourth Proportional to 1,763.73, 2,646.47 and 789.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,763.73 : 2,646.47 = 789.57 : x
2. Step 2: Convert to fraction form
   1,763.73/2,646.47 = 789.57/x
3. Step 3: Cross multiply
   1,763.73x = 2,646.47 × 789.57
4. Step 4: Simplify right side
   1,763.73x = 2,089,573.32
5. Step 5: Solve for x
   x = 2,089,573.32/1,763.73
6. Step 6: Final answer
   x = 1,184.75