Finding the Fourth Proportional to 2,510.55, 3,765.92 and 1,276.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.55 : 3,765.92 = 1,276.31 : x
2. Step 2: Convert to fraction form
   2,510.55/3,765.92 = 1,276.31/x
3. Step 3: Cross multiply
   2,510.55x = 3,765.92 × 1,276.31
4. Step 4: Simplify right side
   2,510.55x = 4,806,456.14
5. Step 5: Solve for x
   x = 4,806,456.14/2,510.55
6. Step 6: Final answer
   x = 1,914.50