Finding the Fourth Proportional to 2,151.16, 3,224.58 and 1,123

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.16 : 3,224.58 = 1,123 : x
2. Step 2: Convert to fraction form
   2,151.16/3,224.58 = 1,123/x
3. Step 3: Cross multiply
   2,151.16x = 3,224.58 × 1,123
4. Step 4: Simplify right side
   2,151.16x = 3,621,203.34
5. Step 5: Solve for x
   x = 3,621,203.34/2,151.16
6. Step 6: Final answer
   x = 1,683.37