Finding the Fourth Proportional to 2,058.56, 3,087.96 and 904.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.56 : 3,087.96 = 904.16 : x
2. Step 2: Convert to fraction form
   2,058.56/3,087.96 = 904.16/x
3. Step 3: Cross multiply
   2,058.56x = 3,087.96 × 904.16
4. Step 4: Simplify right side
   2,058.56x = 2,792,009.91
5. Step 5: Solve for x
   x = 2,792,009.91/2,058.56
6. Step 6: Final answer
   x = 1,356.29