Finding the Fourth Proportional to 1,145,706.05, 1,581,100.74 and 629,492.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145,706.05 : 1,581,100.74 = 629,492.15 : x
2. Step 2: Convert to fraction form
   1,145,706.05/1,581,100.74 = 629,492.15/x
3. Step 3: Cross multiply
   1,145,706.05x = 1,581,100.74 × 629,492.15
4. Step 4: Simplify right side
   1,145,706.05x = 995,290,508,141.94
5. Step 5: Solve for x
   x = 995,290,508,141.94/1,145,706.05
6. Step 6: Final answer
   x = 868,713.67