Finding the Fourth Proportional to 1,863.71, 2,796.74 and 693.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,863.71 : 2,796.74 = 693.59 : x
2. Step 2: Convert to fraction form
   1,863.71/2,796.74 = 693.59/x
3. Step 3: Cross multiply
   1,863.71x = 2,796.74 × 693.59
4. Step 4: Simplify right side
   1,863.71x = 1,939,790.90
5. Step 5: Solve for x
   x = 1,939,790.90/1,863.71
6. Step 6: Final answer
   x = 1,040.82