Finding the Fourth Proportional to 1,816.02, 2,727.81 and 1,123.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,816.02 : 2,727.81 = 1,123.47 : x
2. Step 2: Convert to fraction form
   1,816.02/2,727.81 = 1,123.47/x
3. Step 3: Cross multiply
   1,816.02x = 2,727.81 × 1,123.47
4. Step 4: Simplify right side
   1,816.02x = 3,064,612.70
5. Step 5: Solve for x
   x = 3,064,612.70/1,816.02
6. Step 6: Final answer
   x = 1,687.54