Finding the Fourth Proportional to 1,786.78, 2,466.93 and 1,089.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.78 : 2,466.93 = 1,089.34 : x
2. Step 2: Convert to fraction form
   1,786.78/2,466.93 = 1,089.34/x
3. Step 3: Cross multiply
   1,786.78x = 2,466.93 × 1,089.34
4. Step 4: Simplify right side
   1,786.78x = 2,687,325.53
5. Step 5: Solve for x
   x = 2,687,325.53/1,786.78
6. Step 6: Final answer
   x = 1,504.00