Finding the Fourth Proportional to 1,511.76, 2,086.42 and 922.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,511.76 : 2,086.42 = 922.38 : x
2. Step 2: Convert to fraction form
   1,511.76/2,086.42 = 922.38/x
3. Step 3: Cross multiply
   1,511.76x = 2,086.42 × 922.38
4. Step 4: Simplify right side
   1,511.76x = 1,924,472.08
5. Step 5: Solve for x
   x = 1,924,472.08/1,511.76
6. Step 6: Final answer
   x = 1,273.00