Finding the Fourth Proportional to 2,381.08, 3,285.77 and 1,318.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.08 : 3,285.77 = 1,318.82 : x
2. Step 2: Convert to fraction form
   2,381.08/3,285.77 = 1,318.82/x
3. Step 3: Cross multiply
   2,381.08x = 3,285.77 × 1,318.82
4. Step 4: Simplify right side
   2,381.08x = 4,333,316.17
5. Step 5: Solve for x
   x = 4,333,316.17/2,381.08
6. Step 6: Final answer
   x = 1,819.90