Finding the Fourth Proportional to 1,103,172.72, 1,522,369.17 and 619,727.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103,172.72 : 1,522,369.17 = 619,727.48 : x
2. Step 2: Convert to fraction form
   1,103,172.72/1,522,369.17 = 619,727.48/x
3. Step 3: Cross multiply
   1,103,172.72x = 1,522,369.17 × 619,727.48
4. Step 4: Simplify right side
   1,103,172.72x = 943,454,009,353.79
5. Step 5: Solve for x
   x = 943,454,009,353.79/1,103,172.72
6. Step 6: Final answer
   x = 855,218.76