Finding the Fourth Proportional to 1,223.04, 1,825.50 and 1,125.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223.04 : 1,825.50 = 1,125.42 : x
2. Step 2: Convert to fraction form
   1,223.04/1,825.50 = 1,125.42/x
3. Step 3: Cross multiply
   1,223.04x = 1,825.50 × 1,125.42
4. Step 4: Simplify right side
   1,223.04x = 2,054,454.21
5. Step 5: Solve for x
   x = 2,054,454.21/1,223.04
6. Step 6: Final answer
   x = 1,679.79