Finding the Fourth Proportional to 1,345,309.92, 1,856,443.32 and 771,946.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,309.92 : 1,856,443.32 = 771,946.56 : x
2. Step 2: Convert to fraction form
   1,345,309.92/1,856,443.32 = 771,946.56/x
3. Step 3: Cross multiply
   1,345,309.92x = 1,856,443.32 × 771,946.56
4. Step 4: Simplify right side
   1,345,309.92x = 1,433,075,034,708.98
5. Step 5: Solve for x
   x = 1,433,075,034,708.98/1,345,309.92
6. Step 6: Final answer
   x = 1,065,237.84