Finding the Fourth Proportional to 1,282.67, 1,922.63 and 552.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282.67 : 1,922.63 = 552.30 : x
2. Step 2: Convert to fraction form
   1,282.67/1,922.63 = 552.30/x
3. Step 3: Cross multiply
   1,282.67x = 1,922.63 × 552.30
4. Step 4: Simplify right side
   1,282.67x = 1,061,868.55
5. Step 5: Solve for x
   x = 1,061,868.55/1,282.67
6. Step 6: Final answer
   x = 827.86