Finding the Fourth Proportional to 1,399,227.56, 1,930,911.41 and 787,379.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,227.56 : 1,930,911.41 = 787,379.98 : x
2. Step 2: Convert to fraction form
   1,399,227.56/1,930,911.41 = 787,379.98/x
3. Step 3: Cross multiply
   1,399,227.56x = 1,930,911.41 × 787,379.98
4. Step 4: Simplify right side
   1,399,227.56x = 1,520,360,977,733.01
5. Step 5: Solve for x
   x = 1,520,360,977,733.01/1,399,227.56
6. Step 6: Final answer
   x = 1,086,571.64