Finding the Fourth Proportional to 1,341.36, 2,013.22 and 1,123.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.36 : 2,013.22 = 1,123.34 : x
2. Step 2: Convert to fraction form
   1,341.36/2,013.22 = 1,123.34/x
3. Step 3: Cross multiply
   1,341.36x = 2,013.22 × 1,123.34
4. Step 4: Simplify right side
   1,341.36x = 2,261,530.55
5. Step 5: Solve for x
   x = 2,261,530.55/1,341.36
6. Step 6: Final answer
   x = 1,686.00