Finding the Fourth Proportional to 1,933, 2,667.72 and 1,105

Step by Step Solution

1. Step 1: Write the proportion equation
   1,933 : 2,667.72 = 1,105 : x
2. Step 2: Convert to fraction form
   1,933/2,667.72 = 1,105/x
3. Step 3: Cross multiply
   1,933x = 2,667.72 × 1,105
4. Step 4: Simplify right side
   1,933x = 2,947,830.60
5. Step 5: Solve for x
   x = 2,947,830.60/1,933
6. Step 6: Final answer
   x = 1,525.00