Finding the Fourth Proportional to 1,362.43, 1,881.71 and 919.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.43 : 1,881.71 = 919.56 : x
2. Step 2: Convert to fraction form
   1,362.43/1,881.71 = 919.56/x
3. Step 3: Cross multiply
   1,362.43x = 1,881.71 × 919.56
4. Step 4: Simplify right side
   1,362.43x = 1,730,345.25
5. Step 5: Solve for x
   x = 1,730,345.25/1,362.43
6. Step 6: Final answer
   x = 1,270.04