Finding the Fourth Proportional to 3,298.78, 4,948.89 and 958.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,298.78 : 4,948.89 = 958.81 : x
2. Step 2: Convert to fraction form
   3,298.78/4,948.89 = 958.81/x
3. Step 3: Cross multiply
   3,298.78x = 4,948.89 × 958.81
4. Step 4: Simplify right side
   3,298.78x = 4,745,045.22
5. Step 5: Solve for x
   x = 4,745,045.22/3,298.78
6. Step 6: Final answer
   x = 1,438.42