Finding the Fourth Proportional to 1,789.49, 2,683.83 and 911.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.49 : 2,683.83 = 911.06 : x
2. Step 2: Convert to fraction form
   1,789.49/2,683.83 = 911.06/x
3. Step 3: Cross multiply
   1,789.49x = 2,683.83 × 911.06
4. Step 4: Simplify right side
   1,789.49x = 2,445,116.74
5. Step 5: Solve for x
   x = 2,445,116.74/1,789.49
6. Step 6: Final answer
   x = 1,366.38