Finding the Fourth Proportional to 2,518.31, 3,777.37 and 763.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.31 : 3,777.37 = 763.25 : x
2. Step 2: Convert to fraction form
   2,518.31/3,777.37 = 763.25/x
3. Step 3: Cross multiply
   2,518.31x = 3,777.37 × 763.25
4. Step 4: Simplify right side
   2,518.31x = 2,883,056.86
5. Step 5: Solve for x
   x = 2,883,056.86/2,518.31
6. Step 6: Final answer
   x = 1,144.84