Finding the Fourth Proportional to 2,272.88, 3,136.50 and 1,434.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,272.88 : 3,136.50 = 1,434.03 : x
2. Step 2: Convert to fraction form
   2,272.88/3,136.50 = 1,434.03/x
3. Step 3: Cross multiply
   2,272.88x = 3,136.50 × 1,434.03
4. Step 4: Simplify right side
   2,272.88x = 4,497,835.10
5. Step 5: Solve for x
   x = 4,497,835.10/2,272.88
6. Step 6: Final answer
   x = 1,978.92