Finding the Fourth Proportional to 1,449.16, 2,182.70 and 1,380.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449.16 : 2,182.70 = 1,380.04 : x
2. Step 2: Convert to fraction form
   1,449.16/2,182.70 = 1,380.04/x
3. Step 3: Cross multiply
   1,449.16x = 2,182.70 × 1,380.04
4. Step 4: Simplify right side
   1,449.16x = 3,012,213.31
5. Step 5: Solve for x
   x = 3,012,213.31/1,449.16
6. Step 6: Final answer
   x = 2,078.59