Finding the Fourth Proportional to 1,665.23, 2,298.04 and 919.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.23 : 2,298.04 = 919.24 : x
2. Step 2: Convert to fraction form
   1,665.23/2,298.04 = 919.24/x
3. Step 3: Cross multiply
   1,665.23x = 2,298.04 × 919.24
4. Step 4: Simplify right side
   1,665.23x = 2,112,442.25
5. Step 5: Solve for x
   x = 2,112,442.25/1,665.23
6. Step 6: Final answer
   x = 1,268.56