Finding the Fourth Proportional to 1,618.71, 2,233.88 and 910.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.71 : 2,233.88 = 910.50 : x
2. Step 2: Convert to fraction form
   1,618.71/2,233.88 = 910.50/x
3. Step 3: Cross multiply
   1,618.71x = 2,233.88 × 910.50
4. Step 4: Simplify right side
   1,618.71x = 2,033,947.74
5. Step 5: Solve for x
   x = 2,033,947.74/1,618.71
6. Step 6: Final answer
   x = 1,256.52