Finding the Fourth Proportional to 1,378,978.86, 1,902,213.27 and 827,553.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378,978.86 : 1,902,213.27 = 827,553.54 : x
2. Step 2: Convert to fraction form
   1,378,978.86/1,902,213.27 = 827,553.54/x
3. Step 3: Cross multiply
   1,378,978.86x = 1,902,213.27 × 827,553.54
4. Step 4: Simplify right side
   1,378,978.86x = 1,574,183,325,423.48
5. Step 5: Solve for x
   x = 1,574,183,325,423.48/1,378,978.86
6. Step 6: Final answer
   x = 1,141,557.26