Finding the Fourth Proportional to 1,434,485.97, 1,979,603.55 and 789,908.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434,485.97 : 1,979,603.55 = 789,908.76 : x
2. Step 2: Convert to fraction form
   1,434,485.97/1,979,603.55 = 789,908.76/x
3. Step 3: Cross multiply
   1,434,485.97x = 1,979,603.55 × 789,908.76
4. Step 4: Simplify right side
   1,434,485.97x = 1,563,706,185,472.10
5. Step 5: Solve for x
   x = 1,563,706,185,472.10/1,434,485.97
6. Step 6: Final answer
   x = 1,090,081.20