Finding the Fourth Proportional to 1,380.49, 2,065.78 and 1,014.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380.49 : 2,065.78 = 1,014.37 : x
2. Step 2: Convert to fraction form
   1,380.49/2,065.78 = 1,014.37/x
3. Step 3: Cross multiply
   1,380.49x = 2,065.78 × 1,014.37
4. Step 4: Simplify right side
   1,380.49x = 2,095,465.26
5. Step 5: Solve for x
   x = 2,095,465.26/1,380.49
6. Step 6: Final answer
   x = 1,517.91