Finding the Fourth Proportional to 1,591.04, 2,384.89 and 667.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.04 : 2,384.89 = 667.13 : x
2. Step 2: Convert to fraction form
   1,591.04/2,384.89 = 667.13/x
3. Step 3: Cross multiply
   1,591.04x = 2,384.89 × 667.13
4. Step 4: Simplify right side
   1,591.04x = 1,591,031.67
5. Step 5: Solve for x
   x = 1,591,031.67/1,591.04
6. Step 6: Final answer
   x = 999.99