Finding the Fourth Proportional to 1,166,404.50, 1,609,638.21 and 629,860.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,166,404.50 : 1,609,638.21 = 629,860.50 : x
2. Step 2: Convert to fraction form
   1,166,404.50/1,609,638.21 = 629,860.50/x
3. Step 3: Cross multiply
   1,166,404.50x = 1,609,638.21 × 629,860.50
4. Step 4: Simplify right side
   1,166,404.50x = 1,013,847,527,769.71
5. Step 5: Solve for x
   x = 1,013,847,527,769.71/1,166,404.50
6. Step 6: Final answer
   x = 869,207.49