Finding the Fourth Proportional to 1,372.04, 2,057.55 and 851.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.04 : 2,057.55 = 851.27 : x
2. Step 2: Convert to fraction form
   1,372.04/2,057.55 = 851.27/x
3. Step 3: Cross multiply
   1,372.04x = 2,057.55 × 851.27
4. Step 4: Simplify right side
   1,372.04x = 1,751,530.59
5. Step 5: Solve for x
   x = 1,751,530.59/1,372.04
6. Step 6: Final answer
   x = 1,276.59