Finding the Fourth Proportional to 1,551.89, 2,141.91 and 922.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551.89 : 2,141.91 = 922.76 : x
2. Step 2: Convert to fraction form
   1,551.89/2,141.91 = 922.76/x
3. Step 3: Cross multiply
   1,551.89x = 2,141.91 × 922.76
4. Step 4: Simplify right side
   1,551.89x = 1,976,468.87
5. Step 5: Solve for x
   x = 1,976,468.87/1,551.89
6. Step 6: Final answer
   x = 1,273.59