Finding the Fourth Proportional to 2,410.17, 3,615.38 and 678.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,410.17 : 3,615.38 = 678.93 : x
2. Step 2: Convert to fraction form
   2,410.17/3,615.38 = 678.93/x
3. Step 3: Cross multiply
   2,410.17x = 3,615.38 × 678.93
4. Step 4: Simplify right side
   2,410.17x = 2,454,586.55
5. Step 5: Solve for x
   x = 2,454,586.55/2,410.17
6. Step 6: Final answer
   x = 1,018.43