Finding the Fourth Proportional to 2,799.55, 4,199.43 and 851.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.55 : 4,199.43 = 851.59 : x
2. Step 2: Convert to fraction form
   2,799.55/4,199.43 = 851.59/x
3. Step 3: Cross multiply
   2,799.55x = 4,199.43 × 851.59
4. Step 4: Simplify right side
   2,799.55x = 3,576,171.60
5. Step 5: Solve for x
   x = 3,576,171.60/2,799.55
6. Step 6: Final answer
   x = 1,277.41