Finding the Fourth Proportional to 1,456.88, 2,182.90 and 841.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.88 : 2,182.90 = 841.10 : x
2. Step 2: Convert to fraction form
   1,456.88/2,182.90 = 841.10/x
3. Step 3: Cross multiply
   1,456.88x = 2,182.90 × 841.10
4. Step 4: Simplify right side
   1,456.88x = 1,836,037.19
5. Step 5: Solve for x
   x = 1,836,037.19/1,456.88
6. Step 6: Final answer
   x = 1,260.25