Finding the Fourth Proportional to 1,379.82, 1,905.48 and 1,182.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379.82 : 1,905.48 = 1,182.18 : x
2. Step 2: Convert to fraction form
   1,379.82/1,905.48 = 1,182.18/x
3. Step 3: Cross multiply
   1,379.82x = 1,905.48 × 1,182.18
4. Step 4: Simplify right side
   1,379.82x = 2,252,620.35
5. Step 5: Solve for x
   x = 2,252,620.35/1,379.82
6. Step 6: Final answer
   x = 1,632.55