Finding the Fourth Proportional to 1,309,007.39, 1,806,135.98 and 757,637.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,309,007.39 : 1,806,135.98 = 757,637.55 : x
2. Step 2: Convert to fraction form
   1,309,007.39/1,806,135.98 = 757,637.55/x
3. Step 3: Cross multiply
   1,309,007.39x = 1,806,135.98 × 757,637.55
4. Step 4: Simplify right side
   1,309,007.39x = 1,368,396,435,065.86
5. Step 5: Solve for x
   x = 1,368,396,435,065.86/1,309,007.39
6. Step 6: Final answer
   x = 1,045,369.53