Finding the Fourth Proportional to 1,139,168.24, 1,571,989.38 and 629,837

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,168.24 : 1,571,989.38 = 629,837 : x
2. Step 2: Convert to fraction form
   1,139,168.24/1,571,989.38 = 629,837/x
3. Step 3: Cross multiply
   1,139,168.24x = 1,571,989.38 × 629,837
4. Step 4: Simplify right side
   1,139,168.24x = 990,097,075,131.06
5. Step 5: Solve for x
   x = 990,097,075,131.06/1,139,168.24
6. Step 6: Final answer
   x = 869,140.34