Finding the Fourth Proportional to 1,648.53, 2,275.25 and 940.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.53 : 2,275.25 = 940.50 : x
2. Step 2: Convert to fraction form
   1,648.53/2,275.25 = 940.50/x
3. Step 3: Cross multiply
   1,648.53x = 2,275.25 × 940.50
4. Step 4: Simplify right side
   1,648.53x = 2,139,867.92
5. Step 5: Solve for x
   x = 2,139,867.92/1,648.53
6. Step 6: Final answer
   x = 1,298.05