Finding the Fourth Proportional to 2,380.35, 3,284.71 and 1,318.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.35 : 3,284.71 = 1,318.01 : x
2. Step 2: Convert to fraction form
   2,380.35/3,284.71 = 1,318.01/x
3. Step 3: Cross multiply
   2,380.35x = 3,284.71 × 1,318.01
4. Step 4: Simplify right side
   2,380.35x = 4,329,280.63
5. Step 5: Solve for x
   x = 4,329,280.63/2,380.35
6. Step 6: Final answer
   x = 1,818.76