Finding the Fourth Proportional to 2,666,910.78, 3,680,310.87 and 1,443,190.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666,910.78 : 3,680,310.87 = 1,443,190.14 : x
2. Step 2: Convert to fraction form
   2,666,910.78/3,680,310.87 = 1,443,190.14/x
3. Step 3: Cross multiply
   2,666,910.78x = 3,680,310.87 × 1,443,190.14
4. Step 4: Simplify right side
   2,666,910.78x = 5,311,388,359,718.82
5. Step 5: Solve for x
   x = 5,311,388,359,718.82/2,666,910.78
6. Step 6: Final answer
   x = 1,991,588.32