Finding the Fourth Proportional to 2,123.29, 2,929.31 and 1,226.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.29 : 2,929.31 = 1,226.39 : x
2. Step 2: Convert to fraction form
   2,123.29/2,929.31 = 1,226.39/x
3. Step 3: Cross multiply
   2,123.29x = 2,929.31 × 1,226.39
4. Step 4: Simplify right side
   2,123.29x = 3,592,483.69
5. Step 5: Solve for x
   x = 3,592,483.69/2,123.29
6. Step 6: Final answer
   x = 1,691.94