Finding the Fourth Proportional to 1,664.02, 2,296.49 and 918.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664.02 : 2,296.49 = 918.05 : x
2. Step 2: Convert to fraction form
   1,664.02/2,296.49 = 918.05/x
3. Step 3: Cross multiply
   1,664.02x = 2,296.49 × 918.05
4. Step 4: Simplify right side
   1,664.02x = 2,108,292.64
5. Step 5: Solve for x
   x = 2,108,292.64/1,664.02
6. Step 6: Final answer
   x = 1,266.99