Finding the Fourth Proportional to 2,298.30, 3,447.51 and 838.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.30 : 3,447.51 = 838.54 : x
2. Step 2: Convert to fraction form
   2,298.30/3,447.51 = 838.54/x
3. Step 3: Cross multiply
   2,298.30x = 3,447.51 × 838.54
4. Step 4: Simplify right side
   2,298.30x = 2,890,875.04
5. Step 5: Solve for x
   x = 2,890,875.04/2,298.30
6. Step 6: Final answer
   x = 1,257.83