Finding the Fourth Proportional to 1,136.56, 1,567.50 and 694.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.56 : 1,567.50 = 694.30 : x
2. Step 2: Convert to fraction form
   1,136.56/1,567.50 = 694.30/x
3. Step 3: Cross multiply
   1,136.56x = 1,567.50 × 694.30
4. Step 4: Simplify right side
   1,136.56x = 1,088,315.25
5. Step 5: Solve for x
   x = 1,088,315.25/1,136.56
6. Step 6: Final answer
   x = 957.55