Finding the Fourth Proportional to 1,382.31, 2,072.79 and 944.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.31 : 2,072.79 = 944.24 : x
2. Step 2: Convert to fraction form
   1,382.31/2,072.79 = 944.24/x
3. Step 3: Cross multiply
   1,382.31x = 2,072.79 × 944.24
4. Step 4: Simplify right side
   1,382.31x = 1,957,200.87
5. Step 5: Solve for x
   x = 1,957,200.87/1,382.31
6. Step 6: Final answer
   x = 1,415.89