Finding the Fourth Proportional to 1,696.28, 2,339.55 and 1,136.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,696.28 : 2,339.55 = 1,136.57 : x
2. Step 2: Convert to fraction form
   1,696.28/2,339.55 = 1,136.57/x
3. Step 3: Cross multiply
   1,696.28x = 2,339.55 × 1,136.57
4. Step 4: Simplify right side
   1,696.28x = 2,659,050.65
5. Step 5: Solve for x
   x = 2,659,050.65/1,696.28
6. Step 6: Final answer
   x = 1,567.58