Finding the Fourth Proportional to 2,666,816.51, 3,680,216.48 and 1,443,121.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666,816.51 : 3,680,216.48 = 1,443,121.90 : x
2. Step 2: Convert to fraction form
   2,666,816.51/3,680,216.48 = 1,443,121.90/x
3. Step 3: Cross multiply
   2,666,816.51x = 3,680,216.48 × 1,443,121.90
4. Step 4: Simplify right side
   2,666,816.51x = 5,311,000,993,436.18
5. Step 5: Solve for x
   x = 5,311,000,993,436.18/2,666,816.51
6. Step 6: Final answer
   x = 1,991,513.47