Finding the Fourth Proportional to 1,077,131.22, 1,486,353.69 and 624,451.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077,131.22 : 1,486,353.69 = 624,451.38 : x
2. Step 2: Convert to fraction form
   1,077,131.22/1,486,353.69 = 624,451.38/x
3. Step 3: Cross multiply
   1,077,131.22x = 1,486,353.69 × 624,451.38
4. Step 4: Simplify right side
   1,077,131.22x = 928,155,612,888.59
5. Step 5: Solve for x
   x = 928,155,612,888.59/1,077,131.22
6. Step 6: Final answer
   x = 861,692.24