Finding the Fourth Proportional to 2,851.45, 4,276.72 and 904.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,851.45 : 4,276.72 = 904.12 : x
2. Step 2: Convert to fraction form
   2,851.45/4,276.72 = 904.12/x
3. Step 3: Cross multiply
   2,851.45x = 4,276.72 × 904.12
4. Step 4: Simplify right side
   2,851.45x = 3,866,668.09
5. Step 5: Solve for x
   x = 3,866,668.09/2,851.45
6. Step 6: Final answer
   x = 1,356.04