Finding the Fourth Proportional to 2,298.06, 3,446.34 and 911.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.06 : 3,446.34 = 911.15 : x
2. Step 2: Convert to fraction form
   2,298.06/3,446.34 = 911.15/x
3. Step 3: Cross multiply
   2,298.06x = 3,446.34 × 911.15
4. Step 4: Simplify right side
   2,298.06x = 3,140,115.46
5. Step 5: Solve for x
   x = 3,140,115.46/2,298.06
6. Step 6: Final answer
   x = 1,366.42