Finding the Fourth Proportional to 1,414.71, 1,953.47 and 918.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,414.71 : 1,953.47 = 918.20 : x
2. Step 2: Convert to fraction form
   1,414.71/1,953.47 = 918.20/x
3. Step 3: Cross multiply
   1,414.71x = 1,953.47 × 918.20
4. Step 4: Simplify right side
   1,414.71x = 1,793,676.45
5. Step 5: Solve for x
   x = 1,793,676.45/1,414.71
6. Step 6: Final answer
   x = 1,267.88