Finding the Fourth Proportional to 1,592.83, 2,390.17 and 668.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,592.83 : 2,390.17 = 668.31 : x
2. Step 2: Convert to fraction form
   1,592.83/2,390.17 = 668.31/x
3. Step 3: Cross multiply
   1,592.83x = 2,390.17 × 668.31
4. Step 4: Simplify right side
   1,592.83x = 1,597,362.56
5. Step 5: Solve for x
   x = 1,597,362.56/1,592.83
6. Step 6: Final answer
   x = 1,002.85