Finding the Fourth Proportional to 1,826.88, 2,739.96 and 852.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.88 : 2,739.96 = 852.72 : x
2. Step 2: Convert to fraction form
   1,826.88/2,739.96 = 852.72/x
3. Step 3: Cross multiply
   1,826.88x = 2,739.96 × 852.72
4. Step 4: Simplify right side
   1,826.88x = 2,336,418.69
5. Step 5: Solve for x
   x = 2,336,418.69/1,826.88
6. Step 6: Final answer
   x = 1,278.91