Finding the Fourth Proportional to 1,650.72, 2,277.27 and 987.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,650.72 : 2,277.27 = 987.24 : x
2. Step 2: Convert to fraction form
   1,650.72/2,277.27 = 987.24/x
3. Step 3: Cross multiply
   1,650.72x = 2,277.27 × 987.24
4. Step 4: Simplify right side
   1,650.72x = 2,248,212.03
5. Step 5: Solve for x
   x = 2,248,212.03/1,650.72
6. Step 6: Final answer
   x = 1,361.96