Finding the Fourth Proportional to 2,298.36, 3,447.98 and 911.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.36 : 3,447.98 = 911.42 : x
2. Step 2: Convert to fraction form
   2,298.36/3,447.98 = 911.42/x
3. Step 3: Cross multiply
   2,298.36x = 3,447.98 × 911.42
4. Step 4: Simplify right side
   2,298.36x = 3,142,557.93
5. Step 5: Solve for x
   x = 3,142,557.93/2,298.36
6. Step 6: Final answer
   x = 1,367.30