Finding the Fourth Proportional to 2,825.78, 4,237.90 and 1,182.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,825.78 : 4,237.90 = 1,182.06 : x
2. Step 2: Convert to fraction form
   2,825.78/4,237.90 = 1,182.06/x
3. Step 3: Cross multiply
   2,825.78x = 4,237.90 × 1,182.06
4. Step 4: Simplify right side
   2,825.78x = 5,009,452.07
5. Step 5: Solve for x
   x = 5,009,452.07/2,825.78
6. Step 6: Final answer
   x = 1,772.77