Finding the Fourth Proportional to 2,111.97, 3,167.17 and 724.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.97 : 3,167.17 = 724.93 : x
2. Step 2: Convert to fraction form
   2,111.97/3,167.17 = 724.93/x
3. Step 3: Cross multiply
   2,111.97x = 3,167.17 × 724.93
4. Step 4: Simplify right side
   2,111.97x = 2,295,976.55
5. Step 5: Solve for x
   x = 2,295,976.55/2,111.97
6. Step 6: Final answer
   x = 1,087.13