Finding the Fourth Proportional to 1,419.78, 2,127.83 and 760.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.78 : 2,127.83 = 760.95 : x
2. Step 2: Convert to fraction form
   1,419.78/2,127.83 = 760.95/x
3. Step 3: Cross multiply
   1,419.78x = 2,127.83 × 760.95
4. Step 4: Simplify right side
   1,419.78x = 1,619,168.43
5. Step 5: Solve for x
   x = 1,619,168.43/1,419.78
6. Step 6: Final answer
   x = 1,140.44