Finding the Fourth Proportional to 1,315.69, 1,963.33 and 1,140.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315.69 : 1,963.33 = 1,140.73 : x
2. Step 2: Convert to fraction form
   1,315.69/1,963.33 = 1,140.73/x
3. Step 3: Cross multiply
   1,315.69x = 1,963.33 × 1,140.73
4. Step 4: Simplify right side
   1,315.69x = 2,239,621.67
5. Step 5: Solve for x
   x = 2,239,621.67/1,315.69
6. Step 6: Final answer
   x = 1,702.24