Finding the Fourth Proportional to 1,382.18, 1,908.89 and 1,350.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.18 : 1,908.89 = 1,350.39 : x
2. Step 2: Convert to fraction form
   1,382.18/1,908.89 = 1,350.39/x
3. Step 3: Cross multiply
   1,382.18x = 1,908.89 × 1,350.39
4. Step 4: Simplify right side
   1,382.18x = 2,577,739.22
5. Step 5: Solve for x
   x = 2,577,739.22/1,382.18
6. Step 6: Final answer
   x = 1,864.99