Finding the Fourth Proportional to 2,272.84, 3,136.46 and 1,278.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,272.84 : 3,136.46 = 1,278.33 : x
2. Step 2: Convert to fraction form
   2,272.84/3,136.46 = 1,278.33/x
3. Step 3: Cross multiply
   2,272.84x = 3,136.46 × 1,278.33
4. Step 4: Simplify right side
   2,272.84x = 4,009,412.76
5. Step 5: Solve for x
   x = 4,009,412.76/2,272.84
6. Step 6: Final answer
   x = 1,764.06