Finding the Fourth Proportional to 2,182.56, 3,011.91 and 1,187.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.56 : 3,011.91 = 1,187.84 : x
2. Step 2: Convert to fraction form
   2,182.56/3,011.91 = 1,187.84/x
3. Step 3: Cross multiply
   2,182.56x = 3,011.91 × 1,187.84
4. Step 4: Simplify right side
   2,182.56x = 3,577,667.17
5. Step 5: Solve for x
   x = 3,577,667.17/2,182.56
6. Step 6: Final answer
   x = 1,639.21