Finding the Fourth Proportional to 1,355.43, 1,871.46 and 914.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.43 : 1,871.46 = 914.12 : x
2. Step 2: Convert to fraction form
   1,355.43/1,871.46 = 914.12/x
3. Step 3: Cross multiply
   1,355.43x = 1,871.46 × 914.12
4. Step 4: Simplify right side
   1,355.43x = 1,710,729.66
5. Step 5: Solve for x
   x = 1,710,729.66/1,355.43
6. Step 6: Final answer
   x = 1,262.13