Finding the Fourth Proportional to 1,551.41, 2,141.25 and 922.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551.41 : 2,141.25 = 922.28 : x
2. Step 2: Convert to fraction form
   1,551.41/2,141.25 = 922.28/x
3. Step 3: Cross multiply
   1,551.41x = 2,141.25 × 922.28
4. Step 4: Simplify right side
   1,551.41x = 1,974,821.34
5. Step 5: Solve for x
   x = 1,974,821.34/1,551.41
6. Step 6: Final answer
   x = 1,272.92