Finding the Fourth Proportional to 1,379.46, 1,902.78 and 1,084.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379.46 : 1,902.78 = 1,084.62 : x
2. Step 2: Convert to fraction form
   1,379.46/1,902.78 = 1,084.62/x
3. Step 3: Cross multiply
   1,379.46x = 1,902.78 × 1,084.62
4. Step 4: Simplify right side
   1,379.46x = 2,063,793.24
5. Step 5: Solve for x
   x = 2,063,793.24/1,379.46
6. Step 6: Final answer
   x = 1,496.09