Finding the Fourth Proportional to 1,018,107.99, 1,404,950.54 and 565,428.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,107.99 : 1,404,950.54 = 565,428.15 : x
2. Step 2: Convert to fraction form
   1,018,107.99/1,404,950.54 = 565,428.15/x
3. Step 3: Cross multiply
   1,018,107.99x = 1,404,950.54 × 565,428.15
4. Step 4: Simplify right side
   1,018,107.99x = 794,398,581,846.56
5. Step 5: Solve for x
   x = 794,398,581,846.56/1,018,107.99
6. Step 6: Final answer
   x = 780,269.47