Finding the Fourth Proportional to 2,565.55, 3,849.86 and 922.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,565.55 : 3,849.86 = 922.22 : x
2. Step 2: Convert to fraction form
   2,565.55/3,849.86 = 922.22/x
3. Step 3: Cross multiply
   2,565.55x = 3,849.86 × 922.22
4. Step 4: Simplify right side
   2,565.55x = 3,550,435.31
5. Step 5: Solve for x
   x = 3,550,435.31/2,565.55
6. Step 6: Final answer
   x = 1,383.89