Finding the Fourth Proportional to 2,139,591.27, 3,209,584.72 and 773,705.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,591.27 : 3,209,584.72 = 773,705.89 : x
2. Step 2: Convert to fraction form
   2,139,591.27/3,209,584.72 = 773,705.89/x
3. Step 3: Cross multiply
   2,139,591.27x = 3,209,584.72 × 773,705.89
4. Step 4: Simplify right side
   2,139,591.27x = 2,483,274,602,318.00
5. Step 5: Solve for x
   x = 2,483,274,602,318.00/2,139,591.27
6. Step 6: Final answer
   x = 1,160,630.37