Finding the Fourth Proportional to 2,121.30, 3,182.73 and 889.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,121.30 : 3,182.73 = 889.50 : x
2. Step 2: Convert to fraction form
   2,121.30/3,182.73 = 889.50/x
3. Step 3: Cross multiply
   2,121.30x = 3,182.73 × 889.50
4. Step 4: Simplify right side
   2,121.30x = 2,831,038.34
5. Step 5: Solve for x
   x = 2,831,038.34/2,121.30
6. Step 6: Final answer
   x = 1,334.58