Finding the Fourth Proportional to 2,380.16, 3,284.87 and 1,318.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.16 : 3,284.87 = 1,318.01 : x
2. Step 2: Convert to fraction form
   2,380.16/3,284.87 = 1,318.01/x
3. Step 3: Cross multiply
   2,380.16x = 3,284.87 × 1,318.01
4. Step 4: Simplify right side
   2,380.16x = 4,329,468.49
5. Step 5: Solve for x
   x = 4,329,468.49/2,380.16
6. Step 6: Final answer
   x = 1,818.98