Finding the Fourth Proportional to 1,136.98, 1,568.69 and 694.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.98 : 1,568.69 = 694.42 : x
2. Step 2: Convert to fraction form
   1,136.98/1,568.69 = 694.42/x
3. Step 3: Cross multiply
   1,136.98x = 1,568.69 × 694.42
4. Step 4: Simplify right side
   1,136.98x = 1,089,322.32
5. Step 5: Solve for x
   x = 1,089,322.32/1,136.98
6. Step 6: Final answer
   x = 958.09