Finding the Fourth Proportional to 2,318.89, 3,478.12 and 932.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,318.89 : 3,478.12 = 932.98 : x
2. Step 2: Convert to fraction form
   2,318.89/3,478.12 = 932.98/x
3. Step 3: Cross multiply
   2,318.89x = 3,478.12 × 932.98
4. Step 4: Simplify right side
   2,318.89x = 3,245,016.40
5. Step 5: Solve for x
   x = 3,245,016.40/2,318.89
6. Step 6: Final answer
   x = 1,399.38