Finding the Fourth Proportional to 1,789.38, 2,683.55 and 749.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.38 : 2,683.55 = 749.35 : x
2. Step 2: Convert to fraction form
   1,789.38/2,683.55 = 749.35/x
3. Step 3: Cross multiply
   1,789.38x = 2,683.55 × 749.35
4. Step 4: Simplify right side
   1,789.38x = 2,010,929.91
5. Step 5: Solve for x
   x = 2,010,929.91/1,789.38
6. Step 6: Final answer
   x = 1,123.82