Finding the Fourth Proportional to 1,822.78, 2,515.33 and 1,076.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822.78 : 2,515.33 = 1,076.57 : x
2. Step 2: Convert to fraction form
   1,822.78/2,515.33 = 1,076.57/x
3. Step 3: Cross multiply
   1,822.78x = 2,515.33 × 1,076.57
4. Step 4: Simplify right side
   1,822.78x = 2,707,927.02
5. Step 5: Solve for x
   x = 2,707,927.02/1,822.78
6. Step 6: Final answer
   x = 1,485.60