Finding the Fourth Proportional to 2,292.12, 3,435.83 and 904.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,292.12 : 3,435.83 = 904.89 : x
2. Step 2: Convert to fraction form
   2,292.12/3,435.83 = 904.89/x
3. Step 3: Cross multiply
   2,292.12x = 3,435.83 × 904.89
4. Step 4: Simplify right side
   2,292.12x = 3,109,048.21
5. Step 5: Solve for x
   x = 3,109,048.21/2,292.12
6. Step 6: Final answer
   x = 1,356.41