Finding the Fourth Proportional to 2,187.83, 3,282.72 and 1,147.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.83 : 3,282.72 = 1,147.59 : x
2. Step 2: Convert to fraction form
   2,187.83/3,282.72 = 1,147.59/x
3. Step 3: Cross multiply
   2,187.83x = 3,282.72 × 1,147.59
4. Step 4: Simplify right side
   2,187.83x = 3,767,216.64
5. Step 5: Solve for x
   x = 3,767,216.64/2,187.83
6. Step 6: Final answer
   x = 1,721.90