Finding the Fourth Proportional to 2,543.48, 3,809.98 and 1,223.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.48 : 3,809.98 = 1,223.34 : x
2. Step 2: Convert to fraction form
   2,543.48/3,809.98 = 1,223.34/x
3. Step 3: Cross multiply
   2,543.48x = 3,809.98 × 1,223.34
4. Step 4: Simplify right side
   2,543.48x = 4,660,895.25
5. Step 5: Solve for x
   x = 4,660,895.25/2,543.48
6. Step 6: Final answer
   x = 1,832.48