Finding the Fourth Proportional to 1,381,414.05, 2,072,401.34 and 434,564.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381,414.05 : 2,072,401.34 = 434,564.55 : x
2. Step 2: Convert to fraction form
   1,381,414.05/2,072,401.34 = 434,564.55/x
3. Step 3: Cross multiply
   1,381,414.05x = 2,072,401.34 × 434,564.55
4. Step 4: Simplify right side
   1,381,414.05x = 900,592,153,563.67
5. Step 5: Solve for x
   x = 900,592,153,563.67/1,381,414.05
6. Step 6: Final answer
   x = 651,934.99