Finding the Fourth Proportional to 1,515.69, 2,272.73 and 693.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515.69 : 2,272.73 = 693.52 : x
2. Step 2: Convert to fraction form
   1,515.69/2,272.73 = 693.52/x
3. Step 3: Cross multiply
   1,515.69x = 2,272.73 × 693.52
4. Step 4: Simplify right side
   1,515.69x = 1,576,174.56
5. Step 5: Solve for x
   x = 1,576,174.56/1,515.69
6. Step 6: Final answer
   x = 1,039.91