Finding the Fourth Proportional to 1,060,491.99, 1,590,738 and 873,109.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060,491.99 : 1,590,738 = 873,109.83 : x
2. Step 2: Convert to fraction form
   1,060,491.99/1,590,738 = 873,109.83/x
3. Step 3: Cross multiply
   1,060,491.99x = 1,590,738 × 873,109.83
4. Step 4: Simplify right side
   1,060,491.99x = 1,388,888,984,754.54
5. Step 5: Solve for x
   x = 1,388,888,984,754.54/1,060,491.99
6. Step 6: Final answer
   x = 1,309,664.76