Finding the Fourth Proportional to 2,548.31, 3,822.89 and 904.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,548.31 : 3,822.89 = 904.51 : x
2. Step 2: Convert to fraction form
   2,548.31/3,822.89 = 904.51/x
3. Step 3: Cross multiply
   2,548.31x = 3,822.89 × 904.51
4. Step 4: Simplify right side
   2,548.31x = 3,457,842.23
5. Step 5: Solve for x
   x = 3,457,842.23/2,548.31
6. Step 6: Final answer
   x = 1,356.92