Finding the Fourth Proportional to 1,377,608.72, 1,901,122.76 and 757,440.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377,608.72 : 1,901,122.76 = 757,440.09 : x
2. Step 2: Convert to fraction form
   1,377,608.72/1,901,122.76 = 757,440.09/x
3. Step 3: Cross multiply
   1,377,608.72x = 1,901,122.76 × 757,440.09
4. Step 4: Simplify right side
   1,377,608.72x = 1,439,986,592,047.33
5. Step 5: Solve for x
   x = 1,439,986,592,047.33/1,377,608.72
6. Step 6: Final answer
   x = 1,045,279.82