Finding the Fourth Proportional to 1,922.72, 2,883.45 and 825.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922.72 : 2,883.45 = 825.98 : x
2. Step 2: Convert to fraction form
   1,922.72/2,883.45 = 825.98/x
3. Step 3: Cross multiply
   1,922.72x = 2,883.45 × 825.98
4. Step 4: Simplify right side
   1,922.72x = 2,381,672.03
5. Step 5: Solve for x
   x = 2,381,672.03/1,922.72
6. Step 6: Final answer
   x = 1,238.70