Finding the Fourth Proportional to 2,486.22, 3,729.98 and 842.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,486.22 : 3,729.98 = 842.52 : x
2. Step 2: Convert to fraction form
   2,486.22/3,729.98 = 842.52/x
3. Step 3: Cross multiply
   2,486.22x = 3,729.98 × 842.52
4. Step 4: Simplify right side
   2,486.22x = 3,142,582.75
5. Step 5: Solve for x
   x = 3,142,582.75/2,486.22
6. Step 6: Final answer
   x = 1,264.00