Finding the Fourth Proportional to 1,454.29, 2,179.37 and 838.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,454.29 : 2,179.37 = 838.15 : x
2. Step 2: Convert to fraction form
   1,454.29/2,179.37 = 838.15/x
3. Step 3: Cross multiply
   1,454.29x = 2,179.37 × 838.15
4. Step 4: Simplify right side
   1,454.29x = 1,826,635.61
5. Step 5: Solve for x
   x = 1,826,635.61/1,454.29
6. Step 6: Final answer
   x = 1,256.03