Finding the Fourth Proportional to 2,113.09, 3,168.83 and 726.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.09 : 3,168.83 = 726.17 : x
2. Step 2: Convert to fraction form
   2,113.09/3,168.83 = 726.17/x
3. Step 3: Cross multiply
   2,113.09x = 3,168.83 × 726.17
4. Step 4: Simplify right side
   2,113.09x = 2,301,109.28
5. Step 5: Solve for x
   x = 2,301,109.28/2,113.09
6. Step 6: Final answer
   x = 1,088.98