Finding the Fourth Proportional to 2,759,059.27, 4,139,211.66 and 840,142.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,759,059.27 : 4,139,211.66 = 840,142.03 : x
2. Step 2: Convert to fraction form
   2,759,059.27/4,139,211.66 = 840,142.03/x
3. Step 3: Cross multiply
   2,759,059.27x = 4,139,211.66 × 840,142.03
4. Step 4: Simplify right side
   2,759,059.27x = 3,477,525,665,936.01
5. Step 5: Solve for x
   x = 3,477,525,665,936.01/2,759,059.27
6. Step 6: Final answer
   x = 1,260,402.67