Finding the Fourth Proportional to 1,826.42, 2,741.25 and 853.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.42 : 2,741.25 = 853.07 : x
2. Step 2: Convert to fraction form
   1,826.42/2,741.25 = 853.07/x
3. Step 3: Cross multiply
   1,826.42x = 2,741.25 × 853.07
4. Step 4: Simplify right side
   1,826.42x = 2,338,464.43
5. Step 5: Solve for x
   x = 2,338,464.43/1,826.42
6. Step 6: Final answer
   x = 1,280.36