Finding the Fourth Proportional to 2,648.42, 3,972.29 and 700.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.42 : 3,972.29 = 700.77 : x
2. Step 2: Convert to fraction form
   2,648.42/3,972.29 = 700.77/x
3. Step 3: Cross multiply
   2,648.42x = 3,972.29 × 700.77
4. Step 4: Simplify right side
   2,648.42x = 2,783,661.66
5. Step 5: Solve for x
   x = 2,783,661.66/2,648.42
6. Step 6: Final answer
   x = 1,051.07