Finding the Fourth Proportional to 2,258.81, 3,388.12 and 942.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.81 : 3,388.12 = 942.02 : x
2. Step 2: Convert to fraction form
   2,258.81/3,388.12 = 942.02/x
3. Step 3: Cross multiply
   2,258.81x = 3,388.12 × 942.02
4. Step 4: Simplify right side
   2,258.81x = 3,191,682.92
5. Step 5: Solve for x
   x = 3,191,682.92/2,258.81
6. Step 6: Final answer
   x = 1,412.99