Finding the Fourth Proportional to 1,618.73, 2,233.76 and 910.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.73 : 2,233.76 = 910.59 : x
2. Step 2: Convert to fraction form
   1,618.73/2,233.76 = 910.59/x
3. Step 3: Cross multiply
   1,618.73x = 2,233.76 × 910.59
4. Step 4: Simplify right side
   1,618.73x = 2,034,028.35
5. Step 5: Solve for x
   x = 2,034,028.35/1,618.73
6. Step 6: Final answer
   x = 1,256.56