Finding the Fourth Proportional to 1,052,738.34, 1,578,942.63 and 342,761.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,052,738.34 : 1,578,942.63 = 342,761.58 : x
2. Step 2: Convert to fraction form
   1,052,738.34/1,578,942.63 = 342,761.58/x
3. Step 3: Cross multiply
   1,052,738.34x = 1,578,942.63 × 342,761.58
4. Step 4: Simplify right side
   1,052,738.34x = 541,200,870,588.16
5. Step 5: Solve for x
   x = 541,200,870,588.16/1,052,738.34
6. Step 6: Final answer
   x = 514,088.69