Finding the Fourth Proportional to 2,068.72, 3,098.16 and 1,683.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.72 : 3,098.16 = 1,683.12 : x
2. Step 2: Convert to fraction form
   2,068.72/3,098.16 = 1,683.12/x
3. Step 3: Cross multiply
   2,068.72x = 3,098.16 × 1,683.12
4. Step 4: Simplify right side
   2,068.72x = 5,214,575.06
5. Step 5: Solve for x
   x = 5,214,575.06/2,068.72
6. Step 6: Final answer
   x = 2,520.68