Finding the Fourth Proportional to 1,350.46, 1,863.71 and 826.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350.46 : 1,863.71 = 826.57 : x
2. Step 2: Convert to fraction form
   1,350.46/1,863.71 = 826.57/x
3. Step 3: Cross multiply
   1,350.46x = 1,863.71 × 826.57
4. Step 4: Simplify right side
   1,350.46x = 1,540,482.64
5. Step 5: Solve for x
   x = 1,540,482.64/1,350.46
6. Step 6: Final answer
   x = 1,140.71