Finding the Fourth Proportional to 1,714.72, 2,365.55 and 1,006.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,714.72 : 2,365.55 = 1,006.20 : x
2. Step 2: Convert to fraction form
   1,714.72/2,365.55 = 1,006.20/x
3. Step 3: Cross multiply
   1,714.72x = 2,365.55 × 1,006.20
4. Step 4: Simplify right side
   1,714.72x = 2,380,216.41
5. Step 5: Solve for x
   x = 2,380,216.41/1,714.72
6. Step 6: Final answer
   x = 1,388.11