Finding the Fourth Proportional to 1,817.57, 2,725.60 and 1,123.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,817.57 : 2,725.60 = 1,123.22 : x
2. Step 2: Convert to fraction form
   1,817.57/2,725.60 = 1,123.22/x
3. Step 3: Cross multiply
   1,817.57x = 2,725.60 × 1,123.22
4. Step 4: Simplify right side
   1,817.57x = 3,061,448.43
5. Step 5: Solve for x
   x = 3,061,448.43/1,817.57
6. Step 6: Final answer
   x = 1,684.36