Finding the Fourth Proportional to 2,113.52, 3,170.55 and 652.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.52 : 3,170.55 = 652.82 : x
2. Step 2: Convert to fraction form
   2,113.52/3,170.55 = 652.82/x
3. Step 3: Cross multiply
   2,113.52x = 3,170.55 × 652.82
4. Step 4: Simplify right side
   2,113.52x = 2,069,798.45
5. Step 5: Solve for x
   x = 2,069,798.45/2,113.52
6. Step 6: Final answer
   x = 979.31