Finding the Fourth Proportional to 1,592.59, 2,387.54 and 667.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,592.59 : 2,387.54 = 667.71 : x
2. Step 2: Convert to fraction form
   1,592.59/2,387.54 = 667.71/x
3. Step 3: Cross multiply
   1,592.59x = 2,387.54 × 667.71
4. Step 4: Simplify right side
   1,592.59x = 1,594,169.06
5. Step 5: Solve for x
   x = 1,594,169.06/1,592.59
6. Step 6: Final answer
   x = 1,000.99