Finding the Fourth Proportional to 1,959.01, 2,940.28 and 919.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,959.01 : 2,940.28 = 919.61 : x
2. Step 2: Convert to fraction form
   1,959.01/2,940.28 = 919.61/x
3. Step 3: Cross multiply
   1,959.01x = 2,940.28 × 919.61
4. Step 4: Simplify right side
   1,959.01x = 2,703,910.89
5. Step 5: Solve for x
   x = 2,703,910.89/1,959.01
6. Step 6: Final answer
   x = 1,380.24