Finding the Fourth Proportional to 1,308,401.30, 1,805,329.01 and 764,431.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308,401.30 : 1,805,329.01 = 764,431.98 : x
2. Step 2: Convert to fraction form
   1,308,401.30/1,805,329.01 = 764,431.98/x
3. Step 3: Cross multiply
   1,308,401.30x = 1,805,329.01 × 764,431.98
4. Step 4: Simplify right side
   1,308,401.30x = 1,380,051,234,961.81
5. Step 5: Solve for x
   x = 1,380,051,234,961.81/1,308,401.30
6. Step 6: Final answer
   x = 1,054,761.43