Finding the Fourth Proportional to 1,352.61, 1,866.25 and 792.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,352.61 : 1,866.25 = 792.78 : x
2. Step 2: Convert to fraction form
   1,352.61/1,866.25 = 792.78/x
3. Step 3: Cross multiply
   1,352.61x = 1,866.25 × 792.78
4. Step 4: Simplify right side
   1,352.61x = 1,479,512.38
5. Step 5: Solve for x
   x = 1,479,512.38/1,352.61
6. Step 6: Final answer
   x = 1,093.82