Finding the Fourth Proportional to 1,434,510.86, 1,979,624.78 and 789,929.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434,510.86 : 1,979,624.78 = 789,929.46 : x
2. Step 2: Convert to fraction form
   1,434,510.86/1,979,624.78 = 789,929.46/x
3. Step 3: Cross multiply
   1,434,510.86x = 1,979,624.78 × 789,929.46
4. Step 4: Simplify right side
   1,434,510.86x = 1,563,763,929,518.37
5. Step 5: Solve for x
   x = 1,563,763,929,518.37/1,434,510.86
6. Step 6: Final answer
   x = 1,090,102.54