Finding the Fourth Proportional to 2,554.15, 3,830.67 and 910.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554.15 : 3,830.67 = 910.81 : x
2. Step 2: Convert to fraction form
   2,554.15/3,830.67 = 910.81/x
3. Step 3: Cross multiply
   2,554.15x = 3,830.67 × 910.81
4. Step 4: Simplify right side
   2,554.15x = 3,489,012.54
5. Step 5: Solve for x
   x = 3,489,012.54/2,554.15
6. Step 6: Final answer
   x = 1,366.02