Finding the Fourth Proportional to 2,848.04, 4,268.40 and 1,287.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,848.04 : 4,268.40 = 1,287.98 : x
2. Step 2: Convert to fraction form
   2,848.04/4,268.40 = 1,287.98/x
3. Step 3: Cross multiply
   2,848.04x = 4,268.40 × 1,287.98
4. Step 4: Simplify right side
   2,848.04x = 5,497,613.83
5. Step 5: Solve for x
   x = 5,497,613.83/2,848.04
6. Step 6: Final answer
   x = 1,930.31