Finding the Fourth Proportional to 2,182.47, 3,011.82 and 1,187.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.47 : 3,011.82 = 1,187.75 : x
2. Step 2: Convert to fraction form
   2,182.47/3,011.82 = 1,187.75/x
3. Step 3: Cross multiply
   2,182.47x = 3,011.82 × 1,187.75
4. Step 4: Simplify right side
   2,182.47x = 3,577,278.60
5. Step 5: Solve for x
   x = 3,577,278.60/2,182.47
6. Step 6: Final answer
   x = 1,639.09