Finding the Fourth Proportional to 2,549.19, 3,822.53 and 905.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.19 : 3,822.53 = 905.51 : x
2. Step 2: Convert to fraction form
   2,549.19/3,822.53 = 905.51/x
3. Step 3: Cross multiply
   2,549.19x = 3,822.53 × 905.51
4. Step 4: Simplify right side
   2,549.19x = 3,461,315.50
5. Step 5: Solve for x
   x = 3,461,315.50/2,549.19
6. Step 6: Final answer
   x = 1,357.81