Finding the Fourth Proportional to 1,777.34, 2,665.78 and 789.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,777.34 : 2,665.78 = 789.82 : x
2. Step 2: Convert to fraction form
   1,777.34/2,665.78 = 789.82/x
3. Step 3: Cross multiply
   1,777.34x = 2,665.78 × 789.82
4. Step 4: Simplify right side
   1,777.34x = 2,105,477.72
5. Step 5: Solve for x
   x = 2,105,477.72/1,777.34
6. Step 6: Final answer
   x = 1,184.62