Finding the Fourth Proportional to 2,112.04, 3,167.98 and 725.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.04 : 3,167.98 = 725.43 : x
2. Step 2: Convert to fraction form
   2,112.04/3,167.98 = 725.43/x
3. Step 3: Cross multiply
   2,112.04x = 3,167.98 × 725.43
4. Step 4: Simplify right side
   2,112.04x = 2,298,157.80
5. Step 5: Solve for x
   x = 2,298,157.80/2,112.04
6. Step 6: Final answer
   x = 1,088.12