Finding the Fourth Proportional to 2,318.34, 3,198.12 and 1,478.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,318.34 : 3,198.12 = 1,478.10 : x
2. Step 2: Convert to fraction form
   2,318.34/3,198.12 = 1,478.10/x
3. Step 3: Cross multiply
   2,318.34x = 3,198.12 × 1,478.10
4. Step 4: Simplify right side
   2,318.34x = 4,727,141.17
5. Step 5: Solve for x
   x = 4,727,141.17/2,318.34
6. Step 6: Final answer
   x = 2,039.02