Finding the Fourth Proportional to 2,825.15, 4,239.38 and 1,181.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,825.15 : 4,239.38 = 1,181.57 : x
2. Step 2: Convert to fraction form
   2,825.15/4,239.38 = 1,181.57/x
3. Step 3: Cross multiply
   2,825.15x = 4,239.38 × 1,181.57
4. Step 4: Simplify right side
   2,825.15x = 5,009,097.12
5. Step 5: Solve for x
   x = 5,009,097.12/2,825.15
6. Step 6: Final answer
   x = 1,773.04