Finding the Fourth Proportional to 1,789.34, 2,683.92 and 749.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.34 : 2,683.92 = 749.12 : x
2. Step 2: Convert to fraction form
   1,789.34/2,683.92 = 749.12/x
3. Step 3: Cross multiply
   1,789.34x = 2,683.92 × 749.12
4. Step 4: Simplify right side
   1,789.34x = 2,010,578.15
5. Step 5: Solve for x
   x = 2,010,578.15/1,789.34
6. Step 6: Final answer
   x = 1,123.64