Finding the Fourth Proportional to 1,584.30, 2,181.83 and 1,550.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,584.30 : 2,181.83 = 1,550.38 : x
2. Step 2: Convert to fraction form
   1,584.30/2,181.83 = 1,550.38/x
3. Step 3: Cross multiply
   1,584.30x = 2,181.83 × 1,550.38
4. Step 4: Simplify right side
   1,584.30x = 3,382,665.60
5. Step 5: Solve for x
   x = 3,382,665.60/1,584.30
6. Step 6: Final answer
   x = 2,135.12