Finding the Fourth Proportional to 2,091.56, 3,132.30 and 1,223.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.56 : 3,132.30 = 1,223.24 : x
2. Step 2: Convert to fraction form
   2,091.56/3,132.30 = 1,223.24/x
3. Step 3: Cross multiply
   2,091.56x = 3,132.30 × 1,223.24
4. Step 4: Simplify right side
   2,091.56x = 3,831,554.65
5. Step 5: Solve for x
   x = 3,831,554.65/2,091.56
6. Step 6: Final answer
   x = 1,831.91