Finding the Fourth Proportional to 1,273,978.09, 1,757,419.81 and 757,364.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273,978.09 : 1,757,419.81 = 757,364.50 : x
2. Step 2: Convert to fraction form
   1,273,978.09/1,757,419.81 = 757,364.50/x
3. Step 3: Cross multiply
   1,273,978.09x = 1,757,419.81 × 757,364.50
4. Step 4: Simplify right side
   1,273,978.09x = 1,331,007,377,395.86
5. Step 5: Solve for x
   x = 1,331,007,377,395.86/1,273,978.09
6. Step 6: Final answer
   x = 1,044,764.73