Finding the Fourth Proportional to 2,512.18, 3,466.83 and 1,393.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,512.18 : 3,466.83 = 1,393.21 : x
2. Step 2: Convert to fraction form
   2,512.18/3,466.83 = 1,393.21/x
3. Step 3: Cross multiply
   2,512.18x = 3,466.83 × 1,393.21
4. Step 4: Simplify right side
   2,512.18x = 4,830,031.78
5. Step 5: Solve for x
   x = 4,830,031.78/2,512.18
6. Step 6: Final answer
   x = 1,922.64