Finding the Fourth Proportional to 1,814.18, 2,723.92 and 1,123.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.18 : 2,723.92 = 1,123.78 : x
2. Step 2: Convert to fraction form
   1,814.18/2,723.92 = 1,123.78/x
3. Step 3: Cross multiply
   1,814.18x = 2,723.92 × 1,123.78
4. Step 4: Simplify right side
   1,814.18x = 3,061,086.82
5. Step 5: Solve for x
   x = 3,061,086.82/1,814.18
6. Step 6: Final answer
   x = 1,687.31