Finding the Fourth Proportional to 1,396.08, 1,922.20 and 1,185.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.08 : 1,922.20 = 1,185.82 : x
2. Step 2: Convert to fraction form
   1,396.08/1,922.20 = 1,185.82/x
3. Step 3: Cross multiply
   1,396.08x = 1,922.20 × 1,185.82
4. Step 4: Simplify right side
   1,396.08x = 2,279,383.20
5. Step 5: Solve for x
   x = 2,279,383.20/1,396.08
6. Step 6: Final answer
   x = 1,632.70