Finding the Fourth Proportional to 1,091.73, 1,633.85 and 894.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091.73 : 1,633.85 = 894.50 : x
2. Step 2: Convert to fraction form
   1,091.73/1,633.85 = 894.50/x
3. Step 3: Cross multiply
   1,091.73x = 1,633.85 × 894.50
4. Step 4: Simplify right side
   1,091.73x = 1,461,478.83
5. Step 5: Solve for x
   x = 1,461,478.83/1,091.73
6. Step 6: Final answer
   x = 1,338.68