Finding the Fourth Proportional to 1,766.61, 2,650.73 and 792.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.61 : 2,650.73 = 792.18 : x
2. Step 2: Convert to fraction form
   1,766.61/2,650.73 = 792.18/x
3. Step 3: Cross multiply
   1,766.61x = 2,650.73 × 792.18
4. Step 4: Simplify right side
   1,766.61x = 2,099,851.33
5. Step 5: Solve for x
   x = 2,099,851.33/1,766.61
6. Step 6: Final answer
   x = 1,188.63