Finding the Fourth Proportional to 2,705.42, 4,058.69 and 1,223.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,705.42 : 4,058.69 = 1,223.93 : x
2. Step 2: Convert to fraction form
   2,705.42/4,058.69 = 1,223.93/x
3. Step 3: Cross multiply
   2,705.42x = 4,058.69 × 1,223.93
4. Step 4: Simplify right side
   2,705.42x = 4,967,556.48
5. Step 5: Solve for x
   x = 4,967,556.48/2,705.42
6. Step 6: Final answer
   x = 1,836.15