Finding the Fourth Proportional to 1,139,106.69, 1,571,998.73 and 629,827.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,106.69 : 1,571,998.73 = 629,827.29 : x
2. Step 2: Convert to fraction form
   1,139,106.69/1,571,998.73 = 629,827.29/x
3. Step 3: Cross multiply
   1,139,106.69x = 1,571,998.73 × 629,827.29
4. Step 4: Simplify right side
   1,139,106.69x = 990,087,696,850.21
5. Step 5: Solve for x
   x = 990,087,696,850.21/1,139,106.69
6. Step 6: Final answer
   x = 869,179.07