Finding the Fourth Proportional to 2,182.04, 3,011.12 and 1,187.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.04 : 3,011.12 = 1,187.30 : x
2. Step 2: Convert to fraction form
   2,182.04/3,011.12 = 1,187.30/x
3. Step 3: Cross multiply
   2,182.04x = 3,011.12 × 1,187.30
4. Step 4: Simplify right side
   2,182.04x = 3,575,081.78
5. Step 5: Solve for x
   x = 3,575,081.78/2,182.04
6. Step 6: Final answer
   x = 1,638.42