Finding the Fourth Proportional to 2,123.91, 2,929.59 and 1,705.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.91 : 2,929.59 = 1,705.23 : x
2. Step 2: Convert to fraction form
   2,123.91/2,929.59 = 1,705.23/x
3. Step 3: Cross multiply
   2,123.91x = 2,929.59 × 1,705.23
4. Step 4: Simplify right side
   2,123.91x = 4,995,624.76
5. Step 5: Solve for x
   x = 4,995,624.76/2,123.91
6. Step 6: Final answer
   x = 2,352.09