Finding the Fourth Proportional to 2,510.31, 3,762.74 and 1,121.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.31 : 3,762.74 = 1,121.73 : x
2. Step 2: Convert to fraction form
   2,510.31/3,762.74 = 1,121.73/x
3. Step 3: Cross multiply
   2,510.31x = 3,762.74 × 1,121.73
4. Step 4: Simplify right side
   2,510.31x = 4,220,778.34
5. Step 5: Solve for x
   x = 4,220,778.34/2,510.31
6. Step 6: Final answer
   x = 1,681.38