Finding the Fourth Proportional to 2,852.73, 4,279.59 and 904.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,852.73 : 4,279.59 = 904.47 : x
2. Step 2: Convert to fraction form
   2,852.73/4,279.59 = 904.47/x
3. Step 3: Cross multiply
   2,852.73x = 4,279.59 × 904.47
4. Step 4: Simplify right side
   2,852.73x = 3,870,760.77
5. Step 5: Solve for x
   x = 3,870,760.77/2,852.73
6. Step 6: Final answer
   x = 1,356.86