Finding the Fourth Proportional to 2,571.06, 3,856.62 and 792.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571.06 : 3,856.62 = 792.12 : x
2. Step 2: Convert to fraction form
   2,571.06/3,856.62 = 792.12/x
3. Step 3: Cross multiply
   2,571.06x = 3,856.62 × 792.12
4. Step 4: Simplify right side
   2,571.06x = 3,054,905.83
5. Step 5: Solve for x
   x = 3,054,905.83/2,571.06
6. Step 6: Final answer
   x = 1,188.19