Finding the Fourth Proportional to 1,111,704.50, 1,669,788.30 and 663,300.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111,704.50 : 1,669,788.30 = 663,300.38 : x
2. Step 2: Convert to fraction form
   1,111,704.50/1,669,788.30 = 663,300.38/x
3. Step 3: Cross multiply
   1,111,704.50x = 1,669,788.30 × 663,300.38
4. Step 4: Simplify right side
   1,111,704.50x = 1,107,571,213,909.55
5. Step 5: Solve for x
   x = 1,107,571,213,909.55/1,111,704.50
6. Step 6: Final answer
   x = 996,282.03