Finding the Fourth Proportional to 1,205.05, 1,662.86 and 694.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205.05 : 1,662.86 = 694.04 : x
2. Step 2: Convert to fraction form
   1,205.05/1,662.86 = 694.04/x
3. Step 3: Cross multiply
   1,205.05x = 1,662.86 × 694.04
4. Step 4: Simplify right side
   1,205.05x = 1,154,091.35
5. Step 5: Solve for x
   x = 1,154,091.35/1,205.05
6. Step 6: Final answer
   x = 957.72