Finding the Fourth Proportional to 2,648.30, 3,972.55 and 700.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.30 : 3,972.55 = 700.52 : x
2. Step 2: Convert to fraction form
   2,648.30/3,972.55 = 700.52/x
3. Step 3: Cross multiply
   2,648.30x = 3,972.55 × 700.52
4. Step 4: Simplify right side
   2,648.30x = 2,782,858.91
5. Step 5: Solve for x
   x = 2,782,858.91/2,648.30
6. Step 6: Final answer
   x = 1,050.81