Finding the Fourth Proportional to 1,412.93, 1,949.94 and 783.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.93 : 1,949.94 = 783.49 : x
2. Step 2: Convert to fraction form
   1,412.93/1,949.94 = 783.49/x
3. Step 3: Cross multiply
   1,412.93x = 1,949.94 × 783.49
4. Step 4: Simplify right side
   1,412.93x = 1,527,757.27
5. Step 5: Solve for x
   x = 1,527,757.27/1,412.93
6. Step 6: Final answer
   x = 1,081.27