Finding the Fourth Proportional to 1,825.68, 2,739.72 and 851.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,825.68 : 2,739.72 = 851.82 : x
2. Step 2: Convert to fraction form
   1,825.68/2,739.72 = 851.82/x
3. Step 3: Cross multiply
   1,825.68x = 2,739.72 × 851.82
4. Step 4: Simplify right side
   1,825.68x = 2,333,748.29
5. Step 5: Solve for x
   x = 2,333,748.29/1,825.68
6. Step 6: Final answer
   x = 1,278.29