Finding the Fourth Proportional to 1,648.59, 2,271.15 and 1,150.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.59 : 2,271.15 = 1,150.35 : x
2. Step 2: Convert to fraction form
   1,648.59/2,271.15 = 1,150.35/x
3. Step 3: Cross multiply
   1,648.59x = 2,271.15 × 1,150.35
4. Step 4: Simplify right side
   1,648.59x = 2,612,617.40
5. Step 5: Solve for x
   x = 2,612,617.40/1,648.59
6. Step 6: Final answer
   x = 1,584.76