Finding the Fourth Proportional to 2,510.78, 3,765.87 and 662.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.78 : 3,765.87 = 662.04 : x
2. Step 2: Convert to fraction form
   2,510.78/3,765.87 = 662.04/x
3. Step 3: Cross multiply
   2,510.78x = 3,765.87 × 662.04
4. Step 4: Simplify right side
   2,510.78x = 2,493,156.57
5. Step 5: Solve for x
   x = 2,493,156.57/2,510.78
6. Step 6: Final answer
   x = 992.98