Finding the Fourth Proportional to 1,515.38, 2,091.76 and 894.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515.38 : 2,091.76 = 894.38 : x
2. Step 2: Convert to fraction form
   1,515.38/2,091.76 = 894.38/x
3. Step 3: Cross multiply
   1,515.38x = 2,091.76 × 894.38
4. Step 4: Simplify right side
   1,515.38x = 1,870,815.61
5. Step 5: Solve for x
   x = 1,870,815.61/1,515.38
6. Step 6: Final answer
   x = 1,234.56