Finding the Fourth Proportional to 2,109.98, 3,164.13 and 723.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.98 : 3,164.13 = 723.06 : x
2. Step 2: Convert to fraction form
   2,109.98/3,164.13 = 723.06/x
3. Step 3: Cross multiply
   2,109.98x = 3,164.13 × 723.06
4. Step 4: Simplify right side
   2,109.98x = 2,287,855.84
5. Step 5: Solve for x
   x = 2,287,855.84/2,109.98
6. Step 6: Final answer
   x = 1,084.30