Finding the Fourth Proportional to 1,396.72, 2,093.34 and 1,223.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.72 : 2,093.34 = 1,223.02 : x
2. Step 2: Convert to fraction form
   1,396.72/2,093.34 = 1,223.02/x
3. Step 3: Cross multiply
   1,396.72x = 2,093.34 × 1,223.02
4. Step 4: Simplify right side
   1,396.72x = 2,560,196.69
5. Step 5: Solve for x
   x = 2,560,196.69/1,396.72
6. Step 6: Final answer
   x = 1,833.01