Finding the Fourth Proportional to 2,272.93, 3,136.81 and 1,264.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,272.93 : 3,136.81 = 1,264.76 : x
2. Step 2: Convert to fraction form
   2,272.93/3,136.81 = 1,264.76/x
3. Step 3: Cross multiply
   2,272.93x = 3,136.81 × 1,264.76
4. Step 4: Simplify right side
   2,272.93x = 3,967,311.82
5. Step 5: Solve for x
   x = 3,967,311.82/2,272.93
6. Step 6: Final answer
   x = 1,745.47