Finding the Fourth Proportional to 2,294.90, 3,439.94 and 1,123.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,294.90 : 3,439.94 = 1,123.29 : x
2. Step 2: Convert to fraction form
   2,294.90/3,439.94 = 1,123.29/x
3. Step 3: Cross multiply
   2,294.90x = 3,439.94 × 1,123.29
4. Step 4: Simplify right side
   2,294.90x = 3,864,050.20
5. Step 5: Solve for x
   x = 3,864,050.20/2,294.90
6. Step 6: Final answer
   x = 1,683.76