Finding the Fourth Proportional to 1,789.35, 2,683.38 and 748.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.35 : 2,683.38 = 748.81 : x
2. Step 2: Convert to fraction form
   1,789.35/2,683.38 = 748.81/x
3. Step 3: Cross multiply
   1,789.35x = 2,683.38 × 748.81
4. Step 4: Simplify right side
   1,789.35x = 2,009,341.78
5. Step 5: Solve for x
   x = 2,009,341.78/1,789.35
6. Step 6: Final answer
   x = 1,122.95