Finding the Fourth Proportional to 2,562.10, 3,842.24 and 918.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,562.10 : 3,842.24 = 918.20 : x
2. Step 2: Convert to fraction form
   2,562.10/3,842.24 = 918.20/x
3. Step 3: Cross multiply
   2,562.10x = 3,842.24 × 918.20
4. Step 4: Simplify right side
   2,562.10x = 3,527,949.78
5. Step 5: Solve for x
   x = 3,527,949.78/2,562.10
6. Step 6: Final answer
   x = 1,376.98