Finding the Fourth Proportional to 712,934.05, 1,069,401.89 and 214,298.05

Step by Step Solution

1. Step 1: Write the proportion equation
   712,934.05 : 1,069,401.89 = 214,298.05 : x
2. Step 2: Convert to fraction form
   712,934.05/1,069,401.89 = 214,298.05/x
3. Step 3: Cross multiply
   712,934.05x = 1,069,401.89 × 214,298.05
4. Step 4: Simplify right side
   712,934.05x = 229,170,739,693.31
5. Step 5: Solve for x
   x = 229,170,739,693.31/712,934.05
6. Step 6: Final answer
   x = 321,447.32