Finding the Fourth Proportional to 1,103,189.67, 1,522,392.71 and 619,744.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103,189.67 : 1,522,392.71 = 619,744.64 : x
2. Step 2: Convert to fraction form
   1,103,189.67/1,522,392.71 = 619,744.64/x
3. Step 3: Cross multiply
   1,103,189.67x = 1,522,392.71 × 619,744.64
4. Step 4: Simplify right side
   1,103,189.67x = 943,494,711,286.89
5. Step 5: Solve for x
   x = 943,494,711,286.89/1,103,189.67
6. Step 6: Final answer
   x = 855,242.52