Finding the Fourth Proportional to 1,665.02, 2,297.63 and 918.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.02 : 2,297.63 = 918.95 : x
2. Step 2: Convert to fraction form
   1,665.02/2,297.63 = 918.95/x
3. Step 3: Cross multiply
   1,665.02x = 2,297.63 × 918.95
4. Step 4: Simplify right side
   1,665.02x = 2,111,397.90
5. Step 5: Solve for x
   x = 2,111,397.90/1,665.02
6. Step 6: Final answer
   x = 1,268.09