Finding the Fourth Proportional to 1,922.67, 2,653.20 and 1,137.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922.67 : 2,653.20 = 1,137.15 : x
2. Step 2: Convert to fraction form
   1,922.67/2,653.20 = 1,137.15/x
3. Step 3: Cross multiply
   1,922.67x = 2,653.20 × 1,137.15
4. Step 4: Simplify right side
   1,922.67x = 3,017,086.38
5. Step 5: Solve for x
   x = 3,017,086.38/1,922.67
6. Step 6: Final answer
   x = 1,569.22