Finding the Fourth Proportional to 2,182.08, 3,272.72 and 1,138.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.08 : 3,272.72 = 1,138.80 : x
2. Step 2: Convert to fraction form
   2,182.08/3,272.72 = 1,138.80/x
3. Step 3: Cross multiply
   2,182.08x = 3,272.72 × 1,138.80
4. Step 4: Simplify right side
   2,182.08x = 3,726,973.54
5. Step 5: Solve for x
   x = 3,726,973.54/2,182.08
6. Step 6: Final answer
   x = 1,707.99