Finding the Fourth Proportional to 1,618.58, 2,233.57 and 910.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.58 : 2,233.57 = 910.54 : x
2. Step 2: Convert to fraction form
   1,618.58/2,233.57 = 910.54/x
3. Step 3: Cross multiply
   1,618.58x = 2,233.57 × 910.54
4. Step 4: Simplify right side
   1,618.58x = 2,033,754.83
5. Step 5: Solve for x
   x = 2,033,754.83/1,618.58
6. Step 6: Final answer
   x = 1,256.51