Finding the Fourth Proportional to 1,792.10, 2,686.94 and 696.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,792.10 : 2,686.94 = 696.18 : x
2. Step 2: Convert to fraction form
   1,792.10/2,686.94 = 696.18/x
3. Step 3: Cross multiply
   1,792.10x = 2,686.94 × 696.18
4. Step 4: Simplify right side
   1,792.10x = 1,870,593.89
5. Step 5: Solve for x
   x = 1,870,593.89/1,792.10
6. Step 6: Final answer
   x = 1,043.80