Finding the Fourth Proportional to 1,656.16, 2,285.46 and 910.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,656.16 : 2,285.46 = 910.12 : x
2. Step 2: Convert to fraction form
   1,656.16/2,285.46 = 910.12/x
3. Step 3: Cross multiply
   1,656.16x = 2,285.46 × 910.12
4. Step 4: Simplify right side
   1,656.16x = 2,080,042.86
5. Step 5: Solve for x
   x = 2,080,042.86/1,656.16
6. Step 6: Final answer
   x = 1,255.94