Finding the Fourth Proportional to 1,722.58, 2,377.69 and 1,634.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.58 : 2,377.69 = 1,634.42 : x
2. Step 2: Convert to fraction form
   1,722.58/2,377.69 = 1,634.42/x
3. Step 3: Cross multiply
   1,722.58x = 2,377.69 × 1,634.42
4. Step 4: Simplify right side
   1,722.58x = 3,886,132.20
5. Step 5: Solve for x
   x = 3,886,132.20/1,722.58
6. Step 6: Final answer
   x = 2,256.00