Finding the Fourth Proportional to 1,121.32, 1,684.38 and 1,084.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,121.32 : 1,684.38 = 1,084.41 : x
2. Step 2: Convert to fraction form
   1,121.32/1,684.38 = 1,084.41/x
3. Step 3: Cross multiply
   1,121.32x = 1,684.38 × 1,084.41
4. Step 4: Simplify right side
   1,121.32x = 1,826,558.52
5. Step 5: Solve for x
   x = 1,826,558.52/1,121.32
6. Step 6: Final answer
   x = 1,628.94