Finding the Fourth Proportional to 766,474.61, 1,149,890.00 and 261,039.98

Step by Step Solution

1. Step 1: Write the proportion equation
   766,474.61 : 1,149,890.00 = 261,039.98 : x
2. Step 2: Convert to fraction form
   766,474.61/1,149,890.00 = 261,039.98/x
3. Step 3: Cross multiply
   766,474.61x = 1,149,890.00 × 261,039.98
4. Step 4: Simplify right side
   766,474.61x = 300,167,264,171.73
5. Step 5: Solve for x
   x = 300,167,264,171.73/766,474.61
6. Step 6: Final answer
   x = 391,620.62