Finding the Fourth Proportional to 2,317.40, 3,474.22 and 930.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.40 : 3,474.22 = 930.12 : x
2. Step 2: Convert to fraction form
   2,317.40/3,474.22 = 930.12/x
3. Step 3: Cross multiply
   2,317.40x = 3,474.22 × 930.12
4. Step 4: Simplify right side
   2,317.40x = 3,231,441.51
5. Step 5: Solve for x
   x = 3,231,441.51/2,317.40
6. Step 6: Final answer
   x = 1,394.43