Finding the Fourth Proportional to 2,181.28, 3,002.16 and 1,737.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,181.28 : 3,002.16 = 1,737.76 : x
2. Step 2: Convert to fraction form
   2,181.28/3,002.16 = 1,737.76/x
3. Step 3: Cross multiply
   2,181.28x = 3,002.16 × 1,737.76
4. Step 4: Simplify right side
   2,181.28x = 5,217,033.56
5. Step 5: Solve for x
   x = 5,217,033.56/2,181.28
6. Step 6: Final answer
   x = 2,391.73