Finding the Fourth Proportional to 1,210.38, 1,668.33 and 1,105.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210.38 : 1,668.33 = 1,105.82 : x
2. Step 2: Convert to fraction form
   1,210.38/1,668.33 = 1,105.82/x
3. Step 3: Cross multiply
   1,210.38x = 1,668.33 × 1,105.82
4. Step 4: Simplify right side
   1,210.38x = 1,844,870.60
5. Step 5: Solve for x
   x = 1,844,870.60/1,210.38
6. Step 6: Final answer
   x = 1,524.21