Finding the Fourth Proportional to 1,665.27, 2,298.02 and 919.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.27 : 2,298.02 = 919.22 : x
2. Step 2: Convert to fraction form
   1,665.27/2,298.02 = 919.22/x
3. Step 3: Cross multiply
   1,665.27x = 2,298.02 × 919.22
4. Step 4: Simplify right side
   1,665.27x = 2,112,369.86
5. Step 5: Solve for x
   x = 2,112,369.86/1,665.27
6. Step 6: Final answer
   x = 1,268.48