Finding the Fourth Proportional to 2,123.54, 2,929.82 and 1,227.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.54 : 2,929.82 = 1,227.16 : x
2. Step 2: Convert to fraction form
   2,123.54/2,929.82 = 1,227.16/x
3. Step 3: Cross multiply
   2,123.54x = 2,929.82 × 1,227.16
4. Step 4: Simplify right side
   2,123.54x = 3,595,357.91
5. Step 5: Solve for x
   x = 3,595,357.91/2,123.54
6. Step 6: Final answer
   x = 1,693.10