Finding the Fourth Proportional to 1,628,265.69, 2,439,315.72 and 1,086,889.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628,265.69 : 2,439,315.72 = 1,086,889.56 : x
2. Step 2: Convert to fraction form
   1,628,265.69/2,439,315.72 = 1,086,889.56/x
3. Step 3: Cross multiply
   1,628,265.69x = 2,439,315.72 × 1,086,889.56
4. Step 4: Simplify right side
   1,628,265.69x = 2,651,266,789,611.88
5. Step 5: Solve for x
   x = 2,651,266,789,611.88/1,628,265.69
6. Step 6: Final answer
   x = 1,628,276.52