Finding the Fourth Proportional to 1,123.06, 1,551.34 and 1,018.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.06 : 1,551.34 = 1,018.27 : x
2. Step 2: Convert to fraction form
   1,123.06/1,551.34 = 1,018.27/x
3. Step 3: Cross multiply
   1,123.06x = 1,551.34 × 1,018.27
4. Step 4: Simplify right side
   1,123.06x = 1,579,670.13
5. Step 5: Solve for x
   x = 1,579,670.13/1,123.06
6. Step 6: Final answer
   x = 1,406.58