Finding the Fourth Proportional to 2,182.06, 3,011.23 and 1,187.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.06 : 3,011.23 = 1,187.32 : x
2. Step 2: Convert to fraction form
   2,182.06/3,011.23 = 1,187.32/x
3. Step 3: Cross multiply
   2,182.06x = 3,011.23 × 1,187.32
4. Step 4: Simplify right side
   2,182.06x = 3,575,293.60
5. Step 5: Solve for x
   x = 3,575,293.60/2,182.06
6. Step 6: Final answer
   x = 1,638.49