Finding the Fourth Proportional to 1,792.10, 2,685.71 and 1,331.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,792.10 : 2,685.71 = 1,331.61 : x
2. Step 2: Convert to fraction form
   1,792.10/2,685.71 = 1,331.61/x
3. Step 3: Cross multiply
   1,792.10x = 2,685.71 × 1,331.61
4. Step 4: Simplify right side
   1,792.10x = 3,576,321.62
5. Step 5: Solve for x
   x = 3,576,321.62/1,792.10
6. Step 6: Final answer
   x = 1,995.61