Finding the Fourth Proportional to 1,714.48, 2,570.17 and 618.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,714.48 : 2,570.17 = 618.59 : x
2. Step 2: Convert to fraction form
   1,714.48/2,570.17 = 618.59/x
3. Step 3: Cross multiply
   1,714.48x = 2,570.17 × 618.59
4. Step 4: Simplify right side
   1,714.48x = 1,589,870.16
5. Step 5: Solve for x
   x = 1,589,870.16/1,714.48
6. Step 6: Final answer
   x = 927.32