Finding the Fourth Proportional to 2,555.55, 3,833.34 and 912.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555.55 : 3,833.34 = 912.16 : x
2. Step 2: Convert to fraction form
   2,555.55/3,833.34 = 912.16/x
3. Step 3: Cross multiply
   2,555.55x = 3,833.34 × 912.16
4. Step 4: Simplify right side
   2,555.55x = 3,496,619.41
5. Step 5: Solve for x
   x = 3,496,619.41/2,555.55
6. Step 6: Final answer
   x = 1,368.25