Finding the Fourth Proportional to 2,182.30, 3,011.52 and 1,187.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.30 : 3,011.52 = 1,187.58 : x
2. Step 2: Convert to fraction form
   2,182.30/3,011.52 = 1,187.58/x
3. Step 3: Cross multiply
   2,182.30x = 3,011.52 × 1,187.58
4. Step 4: Simplify right side
   2,182.30x = 3,576,420.92
5. Step 5: Solve for x
   x = 3,576,420.92/2,182.30
6. Step 6: Final answer
   x = 1,638.83