Finding the Fourth Proportional to 2,562.30, 3,844.41 and 918.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,562.30 : 3,844.41 = 918.78 : x
2. Step 2: Convert to fraction form
   2,562.30/3,844.41 = 918.78/x
3. Step 3: Cross multiply
   2,562.30x = 3,844.41 × 918.78
4. Step 4: Simplify right side
   2,562.30x = 3,532,167.02
5. Step 5: Solve for x
   x = 3,532,167.02/2,562.30
6. Step 6: Final answer
   x = 1,378.51