Finding the Fourth Proportional to 2,164.47, 3,242.43 and 1,065.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.47 : 3,242.43 = 1,065.51 : x
2. Step 2: Convert to fraction form
   2,164.47/3,242.43 = 1,065.51/x
3. Step 3: Cross multiply
   2,164.47x = 3,242.43 × 1,065.51
4. Step 4: Simplify right side
   2,164.47x = 3,454,841.59
5. Step 5: Solve for x
   x = 3,454,841.59/2,164.47
6. Step 6: Final answer
   x = 1,596.16