Finding the Fourth Proportional to 1,427.94, 2,136.78 and 1,344.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.94 : 2,136.78 = 1,344.78 : x
2. Step 2: Convert to fraction form
   1,427.94/2,136.78 = 1,344.78/x
3. Step 3: Cross multiply
   1,427.94x = 2,136.78 × 1,344.78
4. Step 4: Simplify right side
   1,427.94x = 2,873,499.01
5. Step 5: Solve for x
   x = 2,873,499.01/1,427.94
6. Step 6: Final answer
   x = 2,012.34