Finding the Fourth Proportional to 2,181.33, 3,011.76 and 1,683.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.33 : 3,011.76 = 1,683.18 : x
2. Step 2: Convert to fraction form
   2,181.33/3,011.76 = 1,683.18/x
3. Step 3: Cross multiply
   2,181.33x = 3,011.76 × 1,683.18
4. Step 4: Simplify right side
   2,181.33x = 5,069,334.20
5. Step 5: Solve for x
   x = 5,069,334.20/2,181.33
6. Step 6: Final answer
   x = 2,323.96