Finding the Fourth Proportional to 1,168.84, 1,749.77 and 1,127.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.84 : 1,749.77 = 1,127.31 : x
2. Step 2: Convert to fraction form
   1,168.84/1,749.77 = 1,127.31/x
3. Step 3: Cross multiply
   1,168.84x = 1,749.77 × 1,127.31
4. Step 4: Simplify right side
   1,168.84x = 1,972,525.25
5. Step 5: Solve for x
   x = 1,972,525.25/1,168.84
6. Step 6: Final answer
   x = 1,687.59