Finding the Fourth Proportional to 2,123.71, 3,183.65 and 755.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.71 : 3,183.65 = 755.39 : x
2. Step 2: Convert to fraction form
   2,123.71/3,183.65 = 755.39/x
3. Step 3: Cross multiply
   2,123.71x = 3,183.65 × 755.39
4. Step 4: Simplify right side
   2,123.71x = 2,404,893.60
5. Step 5: Solve for x
   x = 2,404,893.60/2,123.71
6. Step 6: Final answer
   x = 1,132.40