Finding the Fourth Proportional to 1,066.79, 1,471.46 and 694.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.79 : 1,471.46 = 694.26 : x
2. Step 2: Convert to fraction form
   1,066.79/1,471.46 = 694.26/x
3. Step 3: Cross multiply
   1,066.79x = 1,471.46 × 694.26
4. Step 4: Simplify right side
   1,066.79x = 1,021,575.82
5. Step 5: Solve for x
   x = 1,021,575.82/1,066.79
6. Step 6: Final answer
   x = 957.62