Finding the Fourth Proportional to 2,147,943.30, 3,221,842.05 and 550,522.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,943.30 : 3,221,842.05 = 550,522.05 : x
2. Step 2: Convert to fraction form
   2,147,943.30/3,221,842.05 = 550,522.05/x
3. Step 3: Cross multiply
   2,147,943.30x = 3,221,842.05 × 550,522.05
4. Step 4: Simplify right side
   2,147,943.30x = 1,773,695,090,142.20
5. Step 5: Solve for x
   x = 1,773,695,090,142.20/2,147,943.30
6. Step 6: Final answer
   x = 825,764.39