Finding the Fourth Proportional to 2,160.45, 3,240.98 and 1,064.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160.45 : 3,240.98 = 1,064.82 : x
2. Step 2: Convert to fraction form
   2,160.45/3,240.98 = 1,064.82/x
3. Step 3: Cross multiply
   2,160.45x = 3,240.98 × 1,064.82
4. Step 4: Simplify right side
   2,160.45x = 3,451,060.32
5. Step 5: Solve for x
   x = 3,451,060.32/2,160.45
6. Step 6: Final answer
   x = 1,597.38