Finding the Fourth Proportional to 1,449.31, 2,000.12 and 918.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,449.31 : 2,000.12 = 918.00 : x
2. Step 2: Convert to fraction form
   1,449.31/2,000.12 = 918.00/x
3. Step 3: Cross multiply
   1,449.31x = 2,000.12 × 918.00
4. Step 4: Simplify right side
   1,449.31x = 1,836,100.16
5. Step 5: Solve for x
   x = 1,836,100.16/1,449.31
6. Step 6: Final answer
   x = 1,266.88