Finding the Fourth Proportional to 1,945.33, 2,684.40 and 1,105.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.33 : 2,684.40 = 1,105.76 : x
2. Step 2: Convert to fraction form
   1,945.33/2,684.40 = 1,105.76/x
3. Step 3: Cross multiply
   1,945.33x = 2,684.40 × 1,105.76
4. Step 4: Simplify right side
   1,945.33x = 2,968,302.14
5. Step 5: Solve for x
   x = 2,968,302.14/1,945.33
6. Step 6: Final answer
   x = 1,525.86