Finding the Fourth Proportional to 2,783,274.13, 4,175,564.55 and 864,087.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783,274.13 : 4,175,564.55 = 864,087.31 : x
2. Step 2: Convert to fraction form
   2,783,274.13/4,175,564.55 = 864,087.31/x
3. Step 3: Cross multiply
   2,783,274.13x = 4,175,564.55 × 864,087.31
4. Step 4: Simplify right side
   2,783,274.13x = 3,608,052,339,740.86
5. Step 5: Solve for x
   x = 3,608,052,339,740.86/2,783,274.13
6. Step 6: Final answer
   x = 1,296,333.80