Finding the Fourth Proportional to 1,514.42, 2,271.15 and 648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,514.42 : 2,271.15 = 648.50 : x
2. Step 2: Convert to fraction form
   1,514.42/2,271.15 = 648.50/x
3. Step 3: Cross multiply
   1,514.42x = 2,271.15 × 648.50
4. Step 4: Simplify right side
   1,514.42x = 1,472,840.78
5. Step 5: Solve for x
   x = 1,472,840.78/1,514.42
6. Step 6: Final answer
   x = 972.54