Finding the Fourth Proportional to 2,089.16, 3,133.98 and 1,223.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.16 : 3,133.98 = 1,223.48 : x
2. Step 2: Convert to fraction form
   2,089.16/3,133.98 = 1,223.48/x
3. Step 3: Cross multiply
   2,089.16x = 3,133.98 × 1,223.48
4. Step 4: Simplify right side
   2,089.16x = 3,834,361.85
5. Step 5: Solve for x
   x = 3,834,361.85/2,089.16
6. Step 6: Final answer
   x = 1,835.36