Finding the Fourth Proportional to 1,665.06, 2,297.89 and 919.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.06 : 2,297.89 = 919.02 : x
2. Step 2: Convert to fraction form
   1,665.06/2,297.89 = 919.02/x
3. Step 3: Cross multiply
   1,665.06x = 2,297.89 × 919.02
4. Step 4: Simplify right side
   1,665.06x = 2,111,806.87
5. Step 5: Solve for x
   x = 2,111,806.87/1,665.06
6. Step 6: Final answer
   x = 1,268.31