Finding the Fourth Proportional to 2,124.34, 3,187.28 and 1,084.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.34 : 3,187.28 = 1,084.61 : x
2. Step 2: Convert to fraction form
   2,124.34/3,187.28 = 1,084.61/x
3. Step 3: Cross multiply
   2,124.34x = 3,187.28 × 1,084.61
4. Step 4: Simplify right side
   2,124.34x = 3,456,948.51
5. Step 5: Solve for x
   x = 3,456,948.51/2,124.34
6. Step 6: Final answer
   x = 1,627.30