Finding the Fourth Proportional to 739,839.89, 1,109,093.38 and 266,191.98

Step by Step Solution

1. Step 1: Write the proportion equation
   739,839.89 : 1,109,093.38 = 266,191.98 : x
2. Step 2: Convert to fraction form
   739,839.89/1,109,093.38 = 266,191.98/x
3. Step 3: Cross multiply
   739,839.89x = 1,109,093.38 × 266,191.98
4. Step 4: Simplify right side
   739,839.89x = 295,231,761,496.13
5. Step 5: Solve for x
   x = 295,231,761,496.13/739,839.89
6. Step 6: Final answer
   x = 399,048.18