Finding the Fourth Proportional to 3,123.78, 4,685.48 and 2,250.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.78 : 4,685.48 = 2,250.34 : x
2. Step 2: Convert to fraction form
   3,123.78/4,685.48 = 2,250.34/x
3. Step 3: Cross multiply
   3,123.78x = 4,685.48 × 2,250.34
4. Step 4: Simplify right side
   3,123.78x = 10,543,923.06
5. Step 5: Solve for x
   x = 10,543,923.06/3,123.78
6. Step 6: Final answer
   x = 3,375.37