Finding the Fourth Proportional to 2,086.23, 3,129.04 and 751.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.23 : 3,129.04 = 751.89 : x
2. Step 2: Convert to fraction form
   2,086.23/3,129.04 = 751.89/x
3. Step 3: Cross multiply
   2,086.23x = 3,129.04 × 751.89
4. Step 4: Simplify right side
   2,086.23x = 2,352,693.89
5. Step 5: Solve for x
   x = 2,352,693.89/2,086.23
6. Step 6: Final answer
   x = 1,127.73